for FreeBSD you can add to /etc/make.conf: WITH_DEBUG_PORTS=mail/dovecot mail/dovecot-pigeonhole
and rebuild the packages. (from the FreeBSD port maintainer, me).
On Mon, Feb 11, 2019 at 10:31 AM Stephan Bosch via dovecot < dovecot@dovecot.org> wrote:
Op 9-2-2019 om 19:27 schreef Giacomo via dovecot:
I got a core file this morning.
opening it with gdb I get this:
(gdb) core imap.core Core was generated by `dovecot/imap'. Program terminated with signal 6, Aborted. #0 0x0000000011c1347a in ?? () (gdb) bt #0 0x0000000011c1347a in ?? () #1 0x0000000011c13444 in ?? () #2 0x0000000000018dee in ?? () #3 0x306db139575f3b0d in ?? () #4 0x00007fffffffc144 in ?? () #5 0x0000000000000000 in ?? ()
Doesn't look clean at all.
That is not that helpful. Did you install debug symbols for Dovecot? This is usually a separate package. It all depends on your OS. I am not familiar with FreeBSD.
Regards,
Stephan.
let me know if I should upload the file somewhere.
Thanks
Il giorno lun 21 gen 2019 alle ore 08:52 Giacomo <giacomo1989@gmail.com <mailto:giacomo1989@gmail.com>> ha scritto:
I've just enabled core dumps on the involved FreeBSD system. Let's see if it dumps something.. Il giorno dom 20 gen 2019 alle ore 19:16 Stephan Bosch <stephan@rename-it.nl <mailto:stephan@rename-it.nl>> ha scritto: Hi Giacomo, Op 21/12/2018 om 16:16 schreef Giacomo: > The bug happens not very often, it might need a week to get a core file. Any luck getting a core file? Regards, Stephan. > > > Il giorno ven 21 dic 2018 alle ore 15:18 Aki Tuomi > <aki.tuomi@open-xchange.com <mailto:aki.tuomi@open-xchange.com> <mailto:aki.tuomi@open-xchange.com <mailto:aki.tuomi@open-xchange.com>>> ha > scritto: > > > On 21.12.2018 14.49, Giacomo wrote: > > I'm running the following: > > > > # 2.3.4 (0ecbaf23d): /usr/local/etc/dovecot/dovecot.conf > > # OS: FreeBSD 11.2-RELEASE-p4 amd64 > > # FS: ZFS > > > > auth_mechanisms = plain login > > auth_username_format = %Ln > > listen = * > > mail_location = maildir:~/Maildir > > namespace inbox { > > inbox = yes > > location = > > mailbox Drafts { > > auto = subscribe > > special_use = \Drafts > > } > > mailbox Junk { > > auto = subscribe > > special_use = \Junk > > } > > mailbox Sent { > > special_use = \Sent > > } > > mailbox Trash { > > auto = subscribe > > special_use = \Trash > > } > > prefix = > > } > > passdb { > > driver = pam > > } > > protocols = imap lmtp > > service auth { > > unix_listener /var/spool/postfix/private/auth { > > group = postfix > > mode = 0666 > > user = postfix > > } > > user = dovecot > > } > > service imap-login { > > inet_listener imap { > > port = 0 > > } > > } > > service lmtp { > > unix_listener /var/spool/postfix/private/dovecot-lmtp { > > group = postfix > > mode = 0600 > > user = postfix > > } > > } > > service stats { > > unix_listener stats-reader { > > group = > > mode = 0600 > > user = > > } > > unix_listener stats-writer { > > group = $default_internal_group > > mode = 0666 > > user = > > } > > user = $default_internal_user > > } > > ssl_cert = </root/cert.pem > > ssl_key = # hidden, use -P to show it > > userdb { > > driver = passwd > > } > > > > dmesg shows: > > > > pid 74441 (imap), uid 1002: exited on signal 6 > > pid 74784 (imap), uid 1002: exited on signal 6 > > pid 21471 (imap), uid 1002: exited on signal 6 > > pid 21470 (imap), uid 1002: exited on signal 6 > > pid 21464 (imap), uid 1002: exited on signal 6 > > pid 21731 (imap), uid 1002: exited on signal 6 > > > > Sometimes the dovecot process serving an user crashes. He runs > mostly > > airmail on macOS and samsung mail on Android. > > > > Happens only to that particular user. > > > > The log shows the following: (maillog) > > > > Dec 16 14:52:35 mail dovecot: imap-login: Login: user=<USER>, > > method=PLAIN, rip=79.12.201.157, lip=192.168.1.28, mpid=74779, TLS, > > session=<wMQI+iN9VtRPDMmd> > > Dec 16 14:52:39 mail dovecot: imap(USER)<74441><nLa+7SN9+fhPDMmd>: > > Panic: file charset-iconv.c: line 83 (charset_to_utf8_try): > assertion > > failed: (srcleft <= CHARSET_MAX_PENDING_BUF_SIZE) > > Dec 16 14:52:39 mail dovecot: imap(USER)<74441><nLa+7SN9+fhPDMmd>: > > Fatal: master: service(imap): child 74441 killed with signal 6 (core > > not dumped - https://dovecot.org/bugreport.html#coredumps - set > > service imap { drop_priv_before_exec=yes }) > > > > I'm here if more info is needed. > > > > Thanks for taking a look. > > > Can you somehow get a core file and get backtrace from it? > > > Aki >
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