Hello,

I have some mailbox with error on index-worker process on dovecot 2.3.0

If I move the same mailbox to dovecot 2.2.33.2 this problem dos not happen.

See below the backtrace:

May 18 10:33:55 Error: imap(xxxxx)<249924><Xpj77npscpYKAQMQ>: indexer failed to index mailbox INBOX

May 18 10:33:55 Fatal: indexer-worker(xxxxx)<281701><Xpj77npscpYKAQMQ:UK9sNELW/lplTAQAF3haWw>: master: service(indexer-worker): child 281701 killed with signal 6 (core dumps disabled)

May 18 10:34:55 Panic: indexer-worker(xxxxx)<307016><Xpj77npscpYKAQMQ:oEUqNn7W/lpIrwQAF3haWw>: file unichar.c: line 160 (uni_ucs4_to_utf8_c): assertion failed: (uni_is_valid_ucs4(chr))

May 18 10:34:55 Error: indexer-worker(xxxxxxxx)<307016><Xpj77npscpYKAQMQ:oEUqNn7W/lpIrwQAF3haWw>: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xc9804) [0x7f157c8eb804] -> /usr/lib64/dovecot/libdovecot.so.0(+0xc98be) [0x7f157c8eb8be] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f157c85e34b] -> /usr/lib64/dovecot/libdovecot.so.0(uni_ucs4_to_utf8_c+0xc0) [0x7f157c9220b0] -> /usr/lib64/dovecot/libdovecot.so.0(+0xaadc9) [0x7f157c8ccdc9] -> /usr/lib64/dovecot/libdovecot.so.0(mail_html2text_more+0xc5) [0x7f157c8ccf85] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xc563) [0x7f157be14563] -> /usr/lib64/dovecot/lib20_fts_plugin.so(fts_parser_more+0x27) [0x7f157be14307] -> /usr/lib64/dovecot/lib20_fts_plugin.so(fts_build_mail+0x440) [0x7f157be121a0] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0x10266) [0x7f157be18266] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_precache+0x2e) [0x7f157cbd56ae] -> dovecot/indexer-worker rogerio@alfacorcorretora.com.br INBOX - 200/734 [0x55bff457f794] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65) [0x7f157c902df5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7f157c90469f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f157c902ef2] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f157c903118] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f157c880ce3] -> dovecot/indexer-worker rogerio@alfacorcorretora.com.br INBOX - 200/734 [0x55bff457f18b] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f157c480c05] -> dovecot/indexer-worker rogerio@alfacorcorretora.com.br INBOX - 200/734 [0x55bff457f252]

May 18 10:34:55 Error: indexer: Indexer worker disconnected, discarding 1 requests for xxxxxx

May 18 10:34:55 Error: imap(xxxxx)<249924><Xpj77npscpYKAQMQ>: indexer failed to index mailbox INBOX

May 18 10:34:55 Fatal: indexer-worker(xxxxx)<307016><Xpj77npscpYKAQMQ:oEUqNn7W/lpIrwQAF3haWw>: master: service(indexer-worker): child 307016 killed with signal 6 (core dumps disabled)

uname -a

Linux mailsrv01 2.6.32-696.23.1.el6.x86_64 #1 SMP Tue Mar 13 22:44:18 UTC

2018 x86_64 x86_64 x86_64 GNU/Linux

dovecot --version

2.3.0.1 (ffd8a29)

dovecot -n

# 2.3.0.1 (ffd8a29): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.devel (61b47828) # OS: Linux 2.6.32-696.23.1.el6.x86_64 x86_64 CentOS release 6.9 (Final) # Hostname: mailsrv01 auth_master_user_separator = * auth_verbose_passwords = sha1 default_client_limit = 2000 deliver_log_format = subject=%s from:%f sender:%e to: %{to_envelope} size:%p msgid=%m status=%$ delivery_time=%{delivery_time} session_time=%{session_time} disable_plaintext_auth = no doveadm_allowed_commands = quota get,dsync-server,kick,purge,fts rescan,altmove,mailbox list,expunge,mailbox status doveadm_password = # hidden, use -P to show it lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_rcpt_check_quota = yes login_greeting = IMAP4.

login_trusted_networks = x.x.x.x/24

mail_fsync = never

mail_gid = xxx

mail_location = mdbox:~/mdbox:ALT=/altstorage%h/mdbox

mail_plugins = quota quota_clone fts fts_solr zlib mail_uid = xxx 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 ihave duplicate vnd.dovecot .filter namespace inbox {

inbox = yes

list = yes

location =

mailbox "Itens Enviados" {

auto = subscribe

special_use = \Sent

}

mailbox "Itens Excluídos" {

auto = subscribe

special_use = \Trash

}

mailbox Rascunhos {

auto = subscribe

special_use = \Drafts

}

mailbox Spam {

auto = subscribe

special_use = \Junk

}

prefix =

separator = .

}

passdb {

args = /etc/dovecot/dovecot-ldap.conf.ext

driver = ldap

}

plugin {

fts = solr

fts_solr = url=http://x.x.x.x:8983/solr/dovecot/

imapsieve_mailbox1_before = file:/etc/dovecot/antispam/report-spam.sieve

imapsieve_mailbox1_causes = COPY

imapsieve_mailbox1_name = Spam

imapsieve_mailbox2_before = file:/etc/dovecot/antispam/report-ham.sieve

imapsieve_mailbox2_causes = COPY

imapsieve_mailbox2_from = Spam

imapsieve_mailbox2_name = *

last_login_dict = redis:host=x.x.x.x:port=6379

quota = count:User quota

quota_clone_dict = redis:host=x.x.x.x:port=6379

quota_rule = *:bytes=0

quota_rule2 = Itens Excluídos:storage=+xM

quota_vsizes = yes

quota_warning = storage=95%% quota-warning 95 %u

quota_warning2 = storage=80%% quota-warning 80 %u

sieve = ~/.dovecot.sieve

sieve_before = /etc/dovecot/sieve/audit.sieve

sieve_before2 = /etc/dovecot/sieve/duplicate.sieve

sieve_before3 = /etc/dovecot/sieve/spam.sieve

sieve_dir = ~/sieve

sieve_global_extensions = +vnd.dovecot.pipe

sieve_pipe_bin_dir = /etc/dovecot/antispam

sieve_plugins = sieve_imapsieve sieve_extprograms

sieve_vacation_default_period = 7d

sieve_vacation_max_period = 30d

sieve_vacation_min_period = 1h

}

protocols = imap pop3 lmtp sieve

service anvil {

client_limit = 2000

}

service auth {

client_limit = 2000

}

service doveadm {

inet_listener {

port = 9011

}

inet_listener http {

port = 9010

}

vsz_limit = 768 M

}

service imap-login {

process_limit = 800

process_min_avail = 200

service_count = 1

vsz_limit = 512 M

}

service imap-postlogin {

executable = script-login dovecot-postlogin imap

unix_listener imap-postlogin {

user = mail

}

user = $default_internal_user

}

service imap {

executable = imap imap-postlogin

process_limit = 20000

vsz_limit = 768 M

}

service indexer-worker {

vsz_limit = 512 M

}

service lmtp {

inet_listener lmtp {

address = *

port = 24

}

vsz_limit = 512 M

}

service managesieve-login {

inet_listener sieve {

port = 4190

}

process_min_avail = 10

}

service managesieve {

process_limit = 512

}

service pop3-postlogin {

executable = script-login dovecot-postlogin pop3

unix_listener pop3-postlogin {

user = mail

}

user = $default_internal_user

}

service pop3 {

executable = pop3 pop3-postlogin

}

service quota-warning {

executable = script quota-warning

unix_listener quota-warning {

user = mail

}

}

service stats {

chroot = empty

client_limit = 20000

drop_priv_before_exec = no

executable = stats

extra_groups =

group =

idle_kill = 4294967295 secs

privileged_group =

process_limit = 1

process_min_avail = 0

protocol =

service_count = 0

type =

unix_listener stats-reader {

group =

mode = 0600

user =

}

unix_listener stats-writer {

group =

mode = 0600

user =

}

user = $default_internal_user

vsz_limit = 18446744073709551615 B

}

ssl = no

submission_host = x.x.x.x

userdb {

driver = prefetch

}

userdb {

args = /etc/dovecot/dovecot-ldap.conf.ext

driver = ldap

}

verbose_proctitle = yes

protocol lda {

mail_fsync = optimized

mail_plugins = quota quota_clone sieve } protocol imap {

imap_max_line_length = 128 k

mail_max_userip_connections = 30

mail_plugins = quota quota_clone fts fts_solr zlib imap_quota last_login imap_sieve } protocol lmtp {

mail_fsync = optimized

mail_plugins = quota quota_clone sieve } protocol pop3 {

mail_max_userip_connections = 10

mail_plugins = quota quota_clone fts fts_solr zlib last_login

pop3_logout_format = in=%i out=%o top=%t/%p, retr=%r/%b, del=%d/%m, size=%s

pop3_no_flag_updates = yes

pop3_save_uidl = yes

pop3_uidl_format = %08Xu%08Xv

}

Regards,

Ricardo