dovecot - Oct 2015 - Dovecot 2.2.18.2: Panic: file fs-api.c: line 756 (fs_copy): assertion failed: (src->fs == dest->fs)

Hello,

a colleague found some strange messages in the logs:

Oct 27 13:08:43 mail postfix/qmgr[1618]: E83C8180F56: from=<user1 at
domain.de>, size=298937, nrcpt=2 (queue active)
Oct 27 13:08:43 mail dovecot: lmtp(6740): Connect from local
Oct 27 13:08:43 mail dovecot: lmtp(user2 at domain.de): gYFbBEdpL1ZUGgAA0nA0dQ:
message-id=<035901d110b0$3929bc20$ab7d3460$@domain.de>: saved mail to
INBOX (from: user1 at domain.de, subject: WG: Matthias, size: 295392)
Oct 27 13:08:43 mail postfix/lmtp[6702]: E83C8180F56: to=<user2 at
domain.de>, relay=mail.domain.de[private/dovecot-lmtp], delay=0.41,
delays=0.36/0/0/0.05, dsn=2.0.0, status=sent (250 2.0.0 <user2 at
domain.de> gYFbBEdpL1ZUGgAA0nA0dQ Saved)
Oct 27 13:08:43 mail dovecot: lmtp(mailarchiv at domain.de): Panic: file
fs-api.c: line 756 (fs_copy): assertion failed: (src->fs == dest->fs)
Oct 27 13:08:43 mail dovecot: lmtp(mailarchiv at domain.de): Error: Raw
backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0x7b53a) [0x7f10419e553a] ->
/usr/lib64/dovecot/libdovecot.so.0(+0x7b5a6) [0x7f10419e55a6] ->
/usr/lib64/dovecot/libdovecot.so.0(+0x281ea) [0x7f10419921ea] ->
/usr/lib64/dovecot/libdovecot.so.0(+0x3163a) [0x7f104199b63a] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(sdbox_copy+0x4c4) [0x7f1041cbad94]
-> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_copy+0x7a)
[0x7f1041c9f37a] ->
/usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1a7) [0x7f1041f891b7]
-> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver+0x11b)
[0x7f1041f8956b] -> dovecot/lmtp() [0x406922] -> dovecot/lmtp() [0x40730d]
-> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x5b) [0x7f10419f7fbb]
-> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xaf)
[0x7f10419f918f] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x9) [0x7f10419f8049]
-> /usr/lib64/dovecot/libdovec
 ot.so.0(io_loop_run+0x38) [0x7f10419f80c8] ->
/usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f1041997043]
-> dovecot/lmtp(main+0x18b) [0x404dbb] ->
/lib64/libc.so.6(__libc_start_main+0xfd) [0x7f10415f4d5d] -> dovecot/lmtp()
[0x404b49]
Oct 27 13:08:43 mail dovecot: lmtp(mailarchiv at domain.de): Fatal: master:
service(lmtp): child 6740 killed with signal 6 (core dumps disabled)
Oct 27 13:08:43 mail postfix/lmtp[6702]: E83C8180F56: to=<mailarchiv at
domain.de>, relay=mail.domain.de[private/dovecot-lmtp], delay=0.41,
delays=0.36/0/0/0.05, dsn=4.4.2, status=deferred (lost connection with
mail.domain.de[private/dovecot-lmtp] while sending end of data -- message may be
sent more than once)

Postfix always_bcc set to mailarchiv at domain.de.

[root at mail ~]# rpm -qa | grep dove
dovecot-ee-2.2.18.2-1.el6.x86_64
dovecot-ee-managesieve-0.4.8-1.el6.x86_64
dovecot-ee-pigeonhole-0.4.8-1.el6.x86_64

[root at mail ~]# doveconf -n
# 2.2.18.2 (866bffbafde7): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.8 (73d4f6cd676a)
# OS: Linux 2.6.32-573.7.1.el6.x86_64 x86_64 CentOS release 6.7 (Final) ext4
auth_cache_negative_ttl = 0
auth_mechanisms = plain login
deliver_log_format = message-id=%m: %$ (from: %f, subject: %s, size: %p)
dict {
? quota = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext }

disable_plaintext_auth = no
imap_client_workarounds = tb-extra-mailbox-sep
mail_attachment_dir = /storage/mail/attachments
mail_attachment_hash = %{sha512}
mail_gid = vmail
mail_location = sdbox:/storage/mail/%d/%n
mail_plugins = acl quota
mail_uid = vmail
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
namespace {
? list = children
? location = sdbox:/storage/mail/%%d/%%n/
? prefix = shared/%%u/
? separator = /
? subscriptions = no
? type = shared }

namespace {
? list = children
? location = maildir:/storage/mail/public:INDEX=/storage/mail/%d/%n/public
? prefix = public/
? separator = /
? subscriptions = no
? type = public }

namespace inbox {
? inbox = yes
? location = 
? mailbox Drafts {
??? auto = subscribe
??? special_use = \Drafts
? }
? mailbox "Gel?schte Objekte" {
??? special_use = \Trash
? }
? mailbox "Gesendete Objekte" {
??? special_use = \Sent
? }
? mailbox Junk {
??? special_use = \Junk
? }
? mailbox Sent {
??? special_use = \Sent
? }
? mailbox "Sent Messages" {
??? special_use = \Sent
? }
? mailbox Trash {
??? auto = subscribe
??? special_use = \Trash
? }
? prefix = 
? subscriptions = yes
? type = private }

passdb {
? args = /etc/dovecot/dovecot-sql.conf.ext
? driver = sql }

plugin {
? acl = vfile
? acl_shared_dict = file:/storage/mail/shared-mailboxes
? sieve = ~/.dovecot.sieve
? sieve_dir = ~/sieve }

protocols = imap lmtp sieve
service auth {
? unix_listener /var/spool/postfix/private/auth {
??? group = postfix
??? mode = 0666
??? user = postfix
? } }

service dict {
? unix_listener dict {
??? group = vmail
??? mode = 0660
??? user = vmail
? } }

service imap-login {
? inet_listener imaps {
??? ssl = yes
? } }

service lmtp {
? unix_listener /var/spool/postfix/private/dovecot-lmtp {
??? group = postfix
??? mode = 0660
??? user = postfix
? } }

service pop3-login {
? inet_listener pop3s {
??? ssl = yes
? } }

ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key = </etc/pki/dovecot/private/dovecot.pem
userdb {
? args = /etc/dovecot/dovecot-sql.conf.ext
? driver = sql }

protocol lmtp {
? mail_plugins = acl quota sieve }

protocol imap {
? mail_plugins = acl quota imap_acl imap_quota }

Best regards

Frank

--

DECOIT GmbH
Fahrenheitstra?e 9
D-28359 Bremen

Tel.: +49-421-596064-0
Fax: +49-421-596064-09
E-Mail: info at decoit.de <mailto:info at decoit.de>
Web: http://www.decoit.de <http://www.decoit.de/>

Amtsgericht Bremen, HRB 21533
Gesch?ftsf?hrer: Prof. Dr.-Ing. Kai-Oliver Detken

On 27 Oct 2015, at 14:26, Frank Mehrtens <mehrtens at decoit.de>
wrote:
> 
> Hello,
> 
> a colleague found some strange messages in the logs:
> 
> Oct 27 13:08:43 mail dovecot: lmtp(mailarchiv at domain.de): Panic: file
fs-api.c: line 756 (fs_copy): assertion failed: (src->fs == dest->fs)
Same mail with attachments was probably attempted to be delivered to multiple
users within the same LMTP session.
http://hg.dovecot.org/dovecot-2.2/rev/183576574417 should fix this.