Try to identify the root problem, enable debug mode in logs, and post
all relevant errors, also take backup of the passwd file, and create
empty one and try yo add one working user you are 100% their credentials
is accurate and check the log result, it could be current passwd file is
corrupt. Also it could be a problem with one of your authentication
mechanisms, ommit all and use one by one and try the one the credentials
you are using encrypted with and check result. If it was issue with
mechanism, you probably have compiled dovecot against old or newer
required library and skipped its warning and causing the code to break.
Anything else from me, I think the current logs cant help me to think of
other potentials, and I would recommend you to submit bug report to bugs
mailing list.
Zak.
On 2025-02-09 11:32, Eugene M. Zheganin via dovecot wrote:
Hello,
I'm trying to move a dovecot mail server from a remote Cpanel VPS to my
site.
I've set up the dovectot to my knowledge, but as soon as I try to
authenticate, I got a crash:
===Cut===
Feb 9 11:15:12 freebsd dovecot[89257]: imap-login: Login: user=,
method=CRAM-MD5, rip=92.255.139.77, lip=49.12.36.80, mpid=545, session=
Feb 9 11:15:12 freebsd dovecot[89257]: imap(gl...@kimlab.link): Panic:
file array.c: line 10 (array_idx_modifiable_i): assertion failed: (idx
< array->buffer->used / array->element_size)
Feb 9 11:15:12 freebsd dovecot[89257]: imap(gl...@kimlab.link): Fatal:
master: service(imap): child 545 killed with signal 6 (core not dumped
- https://dovecot.org/bugreport.html#coredumps)
===Cut===
Thhe only reference I've fount to this error is that it seems to be an
issue in 2.3.17, but I have 2.3.21 version, so I think there's
something in my config. I've also hhave a bunch of old maildirs and I
tried to do a force-resync on 'em, but that didn't help.
Here's my config:
===Cut===
# 2.3.21.1 (d492236fa0): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.21.1 (49005e73)
# OS: FreeBSD 14.2-RELEASE amd64
# Hostname: mail.kimlab.link
auth_debug = yes
auth_debug_passwords = yes
auth_mechanisms = plain login cram-md5 scram-sha-1 scram-sha-256
default_client_limit = 40963
default_process_limit = 10240
disable_plaintext_auth = no
first_valid_gid = 143
first_valid_uid = 143
hostname = mail.kimlab.link
mail_gid = 143
mail_home = /var/imap/%d/%n
mail_location = maildir:~/
mail_uid = 143
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
mbox_write_locks = fcntl
namespace {
inbox = yes
list = yes
location =
prefix =
separator = /
subscriptions = yes
type = private
}
namespace {
location = maildir:/var/imap/%d/public
prefix = Public/
separator = /
subscriptions = no
type = public
}
namespace {
list = children
location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u
prefix = shared/%%u/
separator = /
subscriptions = no
type = shared
}
passdb {
args = scheme=PLAIN username_format=%u /usr/local/etc/dovecot/users
driver = passwd-file
master = yes
pass = yes
}
plugin {
acl = vfile
acl_shared_dict = file:/var/db/dovecot/shared-mailboxes
fts = squat
fts_autoindex = yes
fts_squat = partial=4 full=10
quota = maildir:User quota
quota_rule = *:storage=50G
quota_rule2 = Trash:storage=+10%%
quota_rule3 = Spam:storage=+20%%
quota_warning = storage=95%% quota-warning 95 %u
quota_warning2 = storage=80%% quota-warning 80 %u
sieve = ~/.dovecot.sieve
sieve_after = /var/imap/sieve/sieve-after
sieve_before = /var/imap/sieve/sieve-before/spam.sieve
sieve_default = /var/imap/sieve/default.sieve
sieve_dir = /var/imap/%d/%n/sieve
sieve_global_dir = /var/imap/sieve
sieve_max_script_size = 1M
}
postmaster_address = postmas...@kimlab.link
protocols = imap pop3 lmtp sieve
service auth {
client_limit = 62464
unix_listener /var/imap/private/auth {
group = dovecot
mode = 0660
user = dovecot
}
unix_listener auth-userdb {
group = dovecot
mode = 0660
user = dovecot
}
}
service imap-login {
client_limit = 10000
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
ssl = yes
}
process_limit = 10240
process_min_avail = 1
service_count = 0
vsz_limit = 512 M
}
service imap {
drop_priv_before_exec = yes
process_limit = 10240
}
service lmtp {
unix_listener lmtp {
group = dovecot
mode = 0660
user = dovecot
}
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
}
service pop3-login {
inet_listener pop3 {
port = 110
}
inet_listener pop3s {
port = 995
ssl = yes
}
}
service quota-warning {
executable = script /usr/local/bin/quota-warning.sh
unix_listener quota-warning {
user = dovecot
}
user = dovecot
}
service stats {
unix_listener stats-writer {
group = dovecot
mode = 0660
user = dovecot
}
}
ssl_cert = ssl_key = # hidden, use -P to show it
syslog_facility = local6
userdb {
args = username_format=%u /usr/local/etc/dovecot/users
default_fields = uid=dovecot gid=dovecot home=/var/imap/%d/%n
driver = passwd-file
}
protocol lmtp {
mail_plugins = " quota acl sieve"
}
protocol lda {
mail_plugins = " quota acl sieve"
}
protocol imap {
imap_client_workarounds = tb-extra-mailbox-sep
mail_max_userip_connections = 512
mail_plugins = quota imap_quota fts fts_squat
}
===Cut===
here's my obfuscated users passdb file:
===Cut===
gl...@kimlab.link:{PLAIN}XXXXXXXXX::::::
e...@kimlab.link:{PLAIN}XXXXXXXXX::::::
===Cut===
I'm totally open to any ideas.
I can provide coredumps as well, but I tend to think that's something
obvious since I have very little experience with dovecot.
Thanks.
Eugene.
_______________________________________________
dovecot mailing list -- dovecot@dovecot.org
To unsubscribe send an email to dovecot-le...@dovecot.org
_______________________________________________
dovecot mailing list -- dovecot@dovecot.org
To unsubscribe send an email to dovecot-le...@dovecot.org
