zlib plugin producing errors on 2.3.0

24 Dec 2017


      Hello,
I use the zlib and imap_zlib plugins on FreeBSD. As of 2.3.0, my logs
are producing these errors every so often, but AFAICT the messages
themselves aren't getting corrupted.
Panic: file ostream-zlib.c: line 36 (o_stream_zlib_close): assertion failed: (zstream->ostream.finished || zstream->ostream.ostream.stream_errno != 0)
Fatal: master: service(imap): child 80128 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes })
Panic: file ostream-zlib.c: line 36 (o_stream_zlib_close): assertion failed: (zstream->ostream.finished || zstream->ostream.ostream.stream_errno != 0)
Fatal: master: service(imap): child 80266 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes })
They always come in pairs like that. Following is my doveconf. Let
me know what else I can provide here. Thanks!
# Adam
# 2.3.0 (c8b89eb): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.0 (d68c23a1)
# OS: FreeBSD 11.1-RELEASE-p6 amd64  nullfs
auth_mechanisms = plain login
first_valid_gid = 1021
first_valid_uid = 1021
last_valid_gid = 1022
last_valid_uid = 1022
listen = imap.jail.apnoea.adamw.org
mail_location = mdbox:/mail/%u/mail
mail_plugins = " zlib virtual fts fts_lucene"
mail_prefetch_count = 5
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox FreeBSD {
autoexpunge = 17 weeks
}
mailbox FreeBSD/TodaysCommits {
autoexpunge = 2 days
}
mailbox FreeBSD/automation {
autoexpunge = 1 days
}
mailbox FreeBSD/portmgr {
autoexpunge = 26 weeks
}
mailbox FreeBSD/ports {
autoexpunge = 12 weeks
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
autoexpunge = 30 days
special_use = \Trash
}
mailbox spam/probably {
autoexpunge = 30 days
}
mailbox spam/totally {
autoexpunge = 5 days
}
prefix =
separator = /
}
passdb {
args = scheme=BLF-CRYPT username_format=%u /path/to/userdb.passwd
driver = passwd-file
}
plugin {
fts = lucene
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 25
fts_lucene = whitespace_chars=@
sieve = file:/scripts/sieve/%u.sieve;bindir=/mail/%u/sieve/
sieve_extensions = +vnd.dovecot.pipe +vnd.dovecot.filter +editheader
sieve_filter_bin_dir = /scripts/sieve/filter
sieve_pipe_bin_dir = /scripts/sieve/pipe
sieve_plugins = sieve_extprograms
}
postmaster_address = postmaster@...
protocols = imap lmtp
service imap-login {
inet_listener imaps {
port = 0
}
}
service lmtp {
inet_listener lmtp {
port = 24
}
}
ssl = required
ssl_cert = 
--
Adam Weinberger
adamw@adamw.org
http://www.adamw.org