Hello,

I'm seeing some messages from dovecot in my logs such as: May 8 11:43:41 snowdrift dovecot: IMAP(username): Disconnected: BUG: Unknown internal error

I did some searching, and discovered a similar report last month, to which there was a request for more information that didn't seem to get followed up, so I have collected this information too.

Dovecot version: 1.0.10 (from Ubuntu hardy package, which includes some patches; details of the patches can be found here: http://svn.debian.org/wsvn/collab-maint/deb-maint/dovecot/trunk/debian/patches/?rev=0&sc=0 ) OS: Ubuntu 8.04 (Hardy) CPU: x86 Filesystem: ext3 IMAP client: Thunderbird. What was happening with it is not too clear, unfortunately it only seems to occur for one user, and that's not me. Reproducability: Seems to occur fairly frequently, but unable to provide steps. dovecot -n output: # 1.0.10: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imaps pop3s ssl_cert_file: /etc/ssl/certs/snowdrift-cert.pem ssl_key_file: /etc/ssl/private/snowdrift-key.pem ssl_cipher_list: ALL:!LOW:!SSLv2 login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_location: mbox:~/mail:INBOX=/var/mail/%u mail_debug: yes mail_executable(default): /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: passdb: driver: pam userdb: driver: passwd

Raw log output: 29 OK Fetch completed.

• 632 FETCH (UID 14265 RFC822.SIZE 4373)
• BYE BUG: Unknown internal error

Immediately before that was a set of headers from an email, so I guess that's what the "29" line's talking about, and it's just the last two that are relevant.

Please let me know if there's anything further I can provide to help track this down.

Thanks, Ainsley