On 24.12.2017 15:58, Adam Weinberger wrote:
> 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 })
I'm also seeing these errors, but I actually use gz compression. I'm
running 2.3.0 on Arch Linux. Config and logs are below.
Do you need any more information or can you reproduce this?
Florian
log:
> Jan 5 17:37:38 karif dovecot[28075]: imap(xxx)<29587><u2BR4gdi6d6kJ9hk>:
> Panic: file ostream-zlib.c: line 36 (o_stream_zlib_close): assertion failed:
> (zstream->ostream.finished || zstream->ostream.ostream.stream_errno != 0)
> Jan 5 17:37:38 karif dovecot[28075]: imap(xxx)<29587><u2BR4gdi6d6kJ9hk>:
> Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xc4567)
> [0x7fe8af7be567] -> /usr/lib/dovecot/libdovecot.so.0(+0xc462a)
> [0x7fe8af7be62a] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7
> fe8af72ddf9] -> /usr/lib/dovecot/modules/lib20_zlib_plugin.so(+0x757b)
> [0x7fe8ae91a57b] -> /usr/lib/dovecot/libdovecot.so.0(+0xeb686)
> [0x7fe8af7e5686] -> dovecot/imap(+0x18bcd) [0x56168ab2fbcd] ->
> dovecot/imap(+0x11755) [0x56168ab28755] -> /usr/lib/dovecot/libdovecot.so.0(
> io_loop_call_io+0x6b) [0x7fe8af7d691b] ->
> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x137)
> [0x7fe8af7d8247] ->
> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4d) [0x7fe8af7d6a1d]
> -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x39) [0x7fe8af7d6
> c39] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x14)
> [0x7fe8af7515a4] -> dovecot/imap(main+0x357) [0x56168ab23cc7] ->
> /usr/lib/libc.so.6(__libc_start_main+0xea) [0x7fe8af362f4a] ->
> dovecot/imap(_start+0x2a) [0x56168ab23eba]
> Jan 5 17:37:38 karif dovecot[28075]: imap(xxx)<29587><u2BR4gdi6d6kJ9hk>:
> Fatal: master: service(imap): child 29587 killed with signal 6 (core not
> dumped)
config:
> # 2.3.0 (c8b89eb): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.0 (d68c23a1)
> # OS: Linux 4.14.6-1-ARCH x86_64 Arch Linux
> auth_mechanisms = plain login
> auth_username_format = %Ln
> imap_id_log = *
> login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k
> mail_location = mdbox:~/.mdbox
> mail_plugins = " zlib notify mail_log quota"
> 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
> mdbox_rotate_size = 20 M
> namespace inbox {
> hidden = no
> inbox = yes
> list = yes
> location =
> mailbox Drafts {
> auto = subscribe
> special_use = \Drafts
> }
> mailbox Junk {
> auto = subscribe
> special_use = \Junk
> }
> mailbox Sent {
> auto = subscribe
> special_use = \Sent
> }
> mailbox Trash {
> auto = subscribe
> special_use = \Trash
> }
> prefix =
> separator = .
> type = private
> }
> passdb {
> driver = pam
> }
> plugin {
> mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
> mail_log_fields = uid box msgid size
> quota = count:User quota
> quota_status_nouser = DUNNO
> quota_status_overquota = 552 5.2.2 Mailbox is full
> quota_status_success = DUNNO
> quota_vsizes = yes
> sieve = ~/.dovecot.sieve
> sieve_dir = ~/.sieve
> sieve_global_dir = /etc/dovecot/sieve/global/
> sieve_global_path = /etc/dovecot/sieve/default.sieve
> zlib_save = gz
> zlib_save_level = 9
> }
> protocols = imap pop3 sieve lmtp
> service auth {
> unix_listener auth-client {
> group = postfix
> mode = 0660
> user = postfix
> }
> user = root
> }
> service imap-login {
> process_limit = 400
> process_min_avail = 5
> }
> service lmtp {
> drop_priv_before_exec = yes
> unix_listener /var/spool/postfix/private/dovecot-lmtp {
> group = postfix
> mode = 0660
> user = postfix
> }
> }
> service managesieve-login {
> inet_listener sieve-obsolete {
> port = 2000
> }
> }
> ssl_cert = </etc/letsencrypt/live/mail.server-speed.net/fullchain.pem
> ssl_cipher_list =
> EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
> ssl_dh = # hidden, use -P to show it
> ssl_key = # hidden, use -P to show it
> ssl_options = no_compression
> ssl_prefer_server_ciphers = yes
> userdb {
> driver = passwd
> }
> protocol imap {
> imap_client_workarounds = tb-extra-mailbox-sep
> mail_max_userip_connections = 30
> mail_plugins = " zlib notify mail_log quota imap_zlib"
> }
> protocol lda {
> mail_plugins = " zlib notify mail_log quota sieve"
> postmaster_address = postmas...@server-speed.net
> }
> protocol lmtp {
> mail_plugins = " zlib notify mail_log quota sieve"
> postmaster_address = postmas...@server-speed.net
> }
> protocol sieve {
> managesieve_logout_format = bytes ( in=%i : out=%o )
> }
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