doveadm: Error: open(/proc/self/io) failed

23 Jul 2019


      Hi,
I am running dovecot-2.2.36-3.el7.x86_64 on a Centos 7 machine. I keep seeing
the following errors in the dovecot.log:
Jul 22 12:52:04 vmail2 dovecot: doveadm: Error: open(/proc/self/io) failed: Permission denied
Dovecot -n is listed below:
# 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.24 (124e06aa)
# OS: Linux 3.10.0-957.21.3.el7.x86_64 x86_64 CentOS Linux release 7.6.1810 (Core)
# Hostname: vmail2.kmg.mydomain.com
auth_master_user_separator = *
auth_mechanisms = PLAIN LOGIN
deliver_log_format = from=%{from}, envelope_sender=%{from_envelope}, subject=%{subject}, msgid=%m, size=%{size}, %$
dict {
acl = mysql:/etc/dovecot/dovecot-share-folder.conf
quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf
}
doveadm_password =  # hidden, use -P to show it
doveadm_port = 2525
first_valid_uid = 2000
last_valid_uid = 2000
mail_gid = 2000
mail_location = maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/
mail_plugins = quota mailbox_alias acl mail_log notify stats replication
mail_uid = 2000
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 = yes
location =
mailbox Archive {
auto = no
special_use = \Archive
}
mailbox Archives {
auto = no
special_use = \Archive
}
mailbox "Deleted Messages" {
auto = no
special_use = \Trash
}
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox "Junk E-mail" {
auto = no
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Items" {
auto = no
special_use = \Sent
}
mailbox "Sent Messages" {
auto = no
special_use = \Sent
}
mailbox Spam {
auto = no
special_use = \Junk
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
separator = /
type = private
}
namespace {
list = children
location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%Ld/%%Ln
prefix = Shared/%%u/
separator = /
subscriptions = yes
type = shared
}
passdb {
args = /etc/dovecot/dovecot-mysql.conf
driver = sql
}
passdb {
args = /etc/dovecot/dovecot-master-users
driver = passwd-file
master = yes
}
plugin {
acl = vfile
acl_shared_dict = proxy::acl
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 50
imapsieve_mailbox1_before = file:/usr/lib64/dovecot/sieve/report-spam.sieve
imapsieve_mailbox1_causes = COPY
imapsieve_mailbox1_name = Spam
imapsieve_mailbox2_before = file:/usr/lib64/dovecot/sieve/report-ham.sieve
imapsieve_mailbox2_causes = COPY
imapsieve_mailbox2_from = Spam
imapsieve_mailbox2_name = *
mail_log_events = delete undelete expunge mailbox_delete mailbox_rename
mail_log_fields = uid box msgid size from subject
mail_replica = tcp:vmail1.kmg.mydomain.com
mailbox_alias_new = Sent Messages
mailbox_alias_new2 = Sent Items
mailbox_alias_old = Sent
mailbox_alias_old2 = Sent
quota = dict:user::proxy::quotadict
quota_grace = 10%%
quota_warning = storage=100%% quota-warning 100 %u
quota_warning2 = storage=95%% quota-warning 95 %u
quota_warning3 = storage=90%% quota-warning 90 %u
quota_warning4 = storage=85%% quota-warning 85 %u
sieve = ~/sieve/dovecot.sieve
sieve_before = /var/vmail/sieve/dovecot.sieve
sieve_dir = ~/sieve
sieve_global_dir = /var/vmail/sieve
sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute
sieve_max_redirects = 30
sieve_pipe_bin_dir = /usr/lib64/dovecot/sieve
sieve_plugins = sieve_imapsieve sieve_extprograms
sieve_vacation_send_from_recipient = yes
stats_refresh = 30 secs
stats_track_cmds = yes
}
protocols = pop3 imap sieve lmtp
service aggregator {
fifo_listener replication-notify-fifo {
user = vmail
}
unix_listener replication-notify {
user = vmail
}
}
service auth {
unix_listener /var/spool/postfix/private/dovecot-auth {
group = postfix
mode = 0666
user = postfix
}
unix_listener auth-master {
group = vmail
mode = 0666
user = vmail
}
unix_listener auth-userdb {
group = vmail
mode = 0660
user = vmail
}
}
service config {
unix_listener config {
user = vmail
}
}
service dict {
unix_listener dict {
group = vmail
mode = 0660
user = vmail
}
}
service doveadm {
inet_listener {
port = 2525
}
user = vmail
}
service imap-login {
process_limit = 500
service_count = 1
}
service lmtp {
executable = lmtp -L
inet_listener lmtp {
address = 127.0.0.1
port = 24
}
process_min_avail = 5
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
user = vmail
}
service managesieve-login {
inet_listener sieve {
address = 127.0.0.1
port = 4190
}
}
service pop3-login {
service_count = 1
}
service quota-warning {
executable = script /usr/local/bin/dovecot-quota-warning.sh
unix_listener quota-warning {
group = vmail
mode = 0660
user = vmail
}
}
service replicator {
process_min_avail = 1
unix_listener replicator-doveadm {
group = vmail
mode = 0666
}
}
service stats {
fifo_listener stats-mail {
mode = 0644
user = vmail
}
inet_listener {
address = 127.0.0.1
port = 24242
}
}
ssl = required
ssl_cert = 
Everything seems to be working properly and the dovecot wiki says that /proc/self/io
is for statistics. I am thinking they are harmless but they are generating a bunch
of noise in the logs and if harmless, I would like to silence them.
Can someone let me know what causes this and if I should be concerned about this?
My Google foo has not been helpful on this.
Regards,
--
Tom			me@tdiehl.org

doveadm: Error: open(/proc/self/io) failed

me＠tdiehl.org