2.3.17 broken on CentOS8 / bug

William Edwards
2021-10-30T09:35:36Z

> Op 30 okt. 2021 om 10:35 heeft TG Servers <srvrs at prvtmail.net> het
volgende geschreven:
>
> ? Hello,
>
> tonight my dovecot upgraded to 2.3.17 and completely broke on recent CentOS
8 installation.
>
> I found the service in status
>
> [root at riot ~]# systemctl status dovecot
> ? dovecot.service - Dovecot IMAP/POP3 email server
>    Loaded: loaded (/usr/lib/systemd/system/dovecot.service; enabled; vendor
preset: disabled)
>    Active: failed (Result: exit-code) since Sat 2021-10-30 09:59:11 CEST;
58s ago
>      Docs: man:dovecot(1)
>            https://doc.dovecot.org/
>   Process: 1515 ExecStart=/usr/sbin/dovecot -F (code=exited, status=89)
>   Process: 1429 ExecStartPre=/usr/libexec/dovecot/prestartscript
(code=exited, status=0/SUCCESS)
>  Main PID: 1515 (code=exited, status=89)
>
> Oct 30 09:59:10 riot.<domain>.com systemd[1]: Starting Dovecot
IMAP/POP3 email server...
> Oct 30 09:59:11 riot.<domain>.com dovecot[1515]: doveconf: Fatal:
execvp(/usr/libexec/dovecot/managesieve) failed: Argument list too long
> Oct 30 09:59:11 riot.<domain>.com dovecot[1515]: doveconf: Error:
managesieve-login: dump-capability process returned 89
> Oct 30 09:59:11 riot.<domain>.com dovecot[1515]: doveconf: Fatal:
execvp(/usr/sbin/dovecot) failed: Argument list too long
> Oct 30 09:59:11 riot.<domain>.com systemd[1]: dovecot.service: Main
process exited, code=exited, status=89/n/a
> Oct 30 09:59:11 riot.<domain>.com systemd[1]: dovecot.service: Failed
with result 'exit-code'.
> Oct 30 09:59:11 riot.<domain>.com systemd[1]: Failed to start Dovecot
IMAP/POP3 email server.

Please check the archive. If I?m not mistaken, the same issue + possible
solution was posted on the mailing list yesterday.

>
> This seems to be like a bug as no configuration was changed by me in the
middle of the night.
> I recall there were similar errors/bug reports in the past were it seemed
it was managesieve but wasn't, people had some misconfigurations in the
dovecot.conf. I did not change my dovecot.conf since April.
> But maybe here it is a pigeonhole issue.
>
> As I did not find any reason for it I changed the repo and downgraded to
2.3.16-2 now and it runs without any flaws, like all the time before. I had no
time to investigate this any longer thand 2 hours with 2.3.17 installed as this
is a production server and I need the email access. I also did not find anything
adressable in the logs.
>
> [root at riot dovecot]# systemctl status dovecot
> ? dovecot.service - Dovecot IMAP/POP3 email server
>    Loaded: loaded (/usr/lib/systemd/system/dovecot.service; enabled; vendor
preset: disabled)
>    Active: active (running) since Sat 2021-10-30 10:18:11 CEST; 2s ago
>      Docs: man:dovecot(1)
>            https://doc.dovecot.org/
>   Process: 32398 ExecStartPre=/usr/libexec/dovecot/prestartscript
(code=exited, status=0/SUCCESS)
>  Main PID: 32452 (dovecot)
>    Status: "v2.3.16 (7e2e900c1a) running"
>     Tasks: 4 (limit: 99912)
>    Memory: 4.4M
>    CGroup: /system.slice/dovecot.service
>            ??32452 /usr/sbin/dovecot -F
>            ??32507 dovecot/anvil
>            ??32508 dovecot/log
>            ??32513 dovecot/config
>
> Oct 30 10:18:11 riot.<domain>.com systemd[1]: Starting Dovecot
IMAP/POP3 email server...
> Oct 30 10:18:11 riot.<domain>.com dovecot[32452]: Warning: Corrected
permissions for login directory /var/run/dovecot/token-login
> Oct 30 10:18:11 riot.<domain>.com dovecot[32452]: master: Warning:
Corrected permissions for login directory /var/run/dovecot/token-login
> Oct 30 10:18:11 riot.<domain>.com dovecot[32452]: master: Dovecot
v2.3.16 (7e2e900c1a) starting up for imap, lmtp, sieve
> Oct 30 10:18:11 riot.<domain>.com systemd[1]: Started Dovecot
IMAP/POP3 email server.
>
>
> This is the configuration
> # 2.3.16 (7e2e900c1a): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.16 (09c29328)
> # OS: Linux 4.18.0-305.19.1.el8_4.x86_64 x86_64 AlmaLinux release 8.4
(Electric Cheetah)
> # Hostname: riot.<domain>.com
> auth_mechanisms = plain login
> auth_verbose = yes
> listen = *
> mail_gid = vmail
> mail_home = /var/vmail/mailboxes/%d/%n
> mail_location = maildir:~/mail:LAYOUT=fs
> mail_plugins = " quota fts fts_solr"
> mail_privileged_group = vmail
> mail_uid = vmail
> 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 imapsieve vnd.dovecot.imapsieve
> namespace inbox {
>   inbox = yes
>   location >   mailbox Drafts {
>     auto = subscribe
>     special_use = \Drafts
>   }
>   mailbox Sent {
>     auto = subscribe
>     special_use = \Sent
>   }
>   mailbox Spam {
>     auto = subscribe
>     special_use = \Junk
>   }
>   mailbox Trash {
>     auto = subscribe
>     special_use = \Trash
>   }
>   prefix >   separator = .
>   type = private
> }
> passdb {
>   args = /etc/dovecot/dovecot-sql.conf
>   driver = sql
> }
> plugin {
>   fts = solr
>   fts_autoindex = yes
>   fts_solr = url=http://localhost:<solr_port>/solr/dovecot/
>   imapsieve_mailbox1_before = file:/var/vmail/sieve/global/learn-spam.sieve
>   imapsieve_mailbox1_causes = COPY
>   imapsieve_mailbox1_name = Spam
>   imapsieve_mailbox2_before = file:/var/vmail/sieve/global/learn-ham.sieve
>   imapsieve_mailbox2_causes = COPY
>   imapsieve_mailbox2_from = Spam
>   imapsieve_mailbox2_name = *
>   quota = maildir:User quota
>   quota_exceeded_message = User %u is over the storage quota
>   sieve =
file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve
>   sieve_before = /var/vmail/sieve/global/spam-global.sieve
>   sieve_global_extensions = +vnd.dovecot.pipe
>   sieve_pipe_bin_dir = /usr/bin
>   sieve_plugins = sieve_imapsieve sieve_extprograms
> }
> protocols = imap lmtp sieve
> service auth {
>   unix_listener /var/spool/postfix/private/auth {
>     group = postfix
>     mode = 0660
>     user = postfix
>   }
>   unix_listener auth-userdb {
>     group = vmail
>     mode = 0660
>     user = vmail
>   }
> }
> service imap-login {
>   inet_listener imap {
>     port = 0
>   }
>   inet_listener imaps {
>     port = 993
>   }
> }
> service lmtp {
>   unix_listener /var/spool/postfix/private/dovecot-lmtp {
>     group = postfix
>     mode = 0660
>     user = postfix
>   }
>   user = vmail
> }
> service managesieve-login {
>   inet_listener sieve {
>     port = 4190
>   }
> }
> ssl = required
> ssl_ca = </etc/ssl/certs/ca-bundle.crt
> ssl_cert = </etc/ssl/certs/<domain>.com_chain.crt
> ssl_cipher_list =
TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:EECDH+AESGCM:EDH+AESGCM:@SECLEVEL=2
> ssl_client_ca_dir = /etc/ssl/certs
> ssl_client_ca_file = /etc/ssl/certs/ca-bundle.crt
> ssl_dh = # hidden, use -P to show it
> ssl_key = # hidden, use -P to show it
> ssl_prefer_server_ciphers = yes
> userdb {
>   args = /etc/dovecot/dovecot-sql.conf
>   driver = sql
> }
> protocol imap {
>   imap_idle_notify_interval = 24 mins
>   mail_max_userip_connections = 20
>   mail_plugins = " quota fts fts_solr imap_quota imap_sieve"
> }
> protocol lmtp {
>   mail_plugins = " quota fts fts_solr sieve"
>   postmaster_address = postmaster@<domain>.com
> }
> local_name mail.<domain_3>.com {
>   ssl_cert = </etc/ssl/certs/<domain_3>.com_chain.crt
>   ssl_key = # hidden, use -P to show it
> }
> local_name mail.<domain_2>.net {
>   ssl_cert = </etc/ssl/certs/<domain_2>.net_chain.crt
>   ssl_key = # hidden, use -P to show it
> }
> local_name mail.<domain>.com {
>   ssl_cert = </etc/ssl/certs/<domain>.com_chain.crt
>   ssl_key = # hidden, use -P to show it
> }
>
>
>
>
>
>
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