Bug#1147195: /usr/lib/dovecot/libdovecot-sieve.so.0: undefined symbol: t_openat_safe

[Joerg Dorchain]

On Wed, Sep 09, 2026 at 09:29:54AM -0400, Noah Meyerhans wrote:
> On Wed, Sep 09, 2026 at 08:29:38AM +0200, Joerg Dorchain wrote:
> > following test, I noticed the following error while doing an
> > apt-get upgrade
> > 
> > [...]
> > Preparing to unpack .../03-dovecot-sieve_1%3a2.4.5+dfsg1-2_amd64.deb ...
> > Unpacking dovecot-sieve (1:2.4.5+dfsg1-2) over (1:2.4.4+dfsg1-2) ...
> > Preparing to unpack .../04-dovecot-imapd_1%3a2.4.5+dfsg1-2_amd64.deb ...
> > doveconf: Error: Couldn't load plugin
> > /usr/lib/dovecot/modules/settings/libpigeonhole_settings.so: dlopen() 
> > failed:
> > /usr/lib/dovecot/libdovecot-sieve.so.0: undefined symbol: t_openat_safe
> > [...]
> 
> I don't get this warning when performing the same upgrade tasks, and I
> suspect that it's related somehow to your local configuration.
> 
> Can you post the output of `doveconf -n`?

Here you are:
# doveconf  -n 

# 2.4.5 (0cbb641e3e): /etc/dovecot/dovecot.conf
# Pigeonhole version 2.4.5 (742bb892)
# OS: Linux 7.2.0 x86_64 Debian forky/sid 
# Hostname: Redstar.dorchain.net
# 33 default setting changes since version 2.4.1
dovecot_config_version = 2.4.1
auth_failure_delay = 10 secs
auth_mechanisms = plain
dovecot_storage_version = 2.4.1
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 999
fts_search_add_missing = yes
imap_id_retain = yes
imap_id_send {
  name = %{dovecot:name}
  version = %{dovecot:version}
}
mail_driver = mbox
mail_home = /home/%{user|username}
mail_inbox_path = /var/mail/%{user|username}
mail_path = %{home}/Mail
mail_plugins {
  mail_compress = yes
}
mail_privileged_group = mail
protocols {
  imap = yes
}
ssl_cipher_list = 
ALL:!LOW:!SSLv2:!SSLv3:!TLSv1:!EXP:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH
verbose_proctitle = yes
passdb pam {
}
userdb passwd {
}
namespace inbox {
  inbox = yes
  mailbox Drafts {
    special_use = "\\Drafts"
  }
  mailbox Junk {
    special_use = "\\Junk"
  }
  mailbox Trash {
    special_use = "\\Trash"
  }
  mailbox Sent {
    special_use = "\\Sent"
  }
}
service imap-login {
  inet_listener imap {
    listen = 127.0.0.1 ::1
  }
  inet_listener imaps {
  }
}
service pop3-login {
  inet_listener pop3 {
  }
  inet_listener pop3s {
  }
}
service submission-login {
  inet_listener submission {
  }
  inet_listener submissions {
  }
}
service lmtp {
  unix_listener lmtp {
  }
}
service imap {
}
service pop3 {
}
service submission {
}
service auth {
  unix_listener auth-userdb {
  }
}
service auth-worker {
}
service dict {
  unix_listener dict {
  }
}
event_exporter log {
  driver = log
  format = tab-text
}
metric imap_id {
  exporter = log
  fields = cmd_human_args cmd_name user reason_code
  filter = event=imap_id_received
}
ssl_server {
  cert_file = /etc/letsencrypt/live/dorchain.net/fullchain.pem
  key_file = # hidden, use -P to show it
}
protocol imap {
  mail_max_userip_connections = 30
}

Best regards,

Joerg

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