I just tried installing dovecot 1.1.8 as an upgrade to 1.1.7 and encountered Panics like the following with pop3 accesses

Jan 8 10:55:31 sbh16 dovecot: Killed with signal 15 Jan 8 10:55:49 sbh16 dovecot: Dovecot v1.1.8 starting up Jan 8 10:57:01 sbh16 dovecot: pop3-login: Login: user=<user2>, method=PLAIN, rip=72.52.113.36, lip=72.52.113.36, secured Jan 8 10:57:01 sbh16 dovecot: Panic: POP3(user2): file mbox-transaction.c: line 54 (mbox_transaction_commit): assertion failed: (mbox->ibox.box.transaction_count > 0 || mbox->mbox_lock_type == F_UNLCK) Jan 8 10:57:01 sbh16 dovecot: POP3(user2): Raw backtrace: pop3 [0x80c4400] -> pop3 [0x80c445a] -> pop3 [0x80c3d5c] -> pop3 [0x806e209] -> pop3(index_transaction_commit+0x4e) [0x809251e] -> pop3(mailbox_transaction_commit+0x26) [0x80942a6] -> pop3(client_command_execute+0x3c5) [0x805b1f5] -> pop3 [0x805a152] -> pop3(io_loop_handler_run+0x100) [0x80cc100] -> pop3(io_loop_run+0x28) [0x80cb208] -> pop3(main+0x5d2) [0x805bda2] -> /lib/libc.so.6(__libc_start_main+0xdc) [0x4614cdec] -> pop3 [0x80594d1] Jan 8 10:57:01 sbh16 dovecot: child 32263 (pop3) killed with signal 6

I have a few users who access their mailbox via pop3 every few minutes and they all hit this. I reverted to 1.1.7 and all was OK

Here's dovecot -n from 1.1.7. The dovecot.conf for 1.1.8 was the same.

# 1.1.7: /usr/local/etc/dovecot.conf # OS: Linux 2.6.18-8.1.14.el5 i686 CentOS release 5 (Final) ext3 protocols: pop3 pop3s ssl_cert_file: /etc/postfix/grizz-cert.pem ssl_key_file: /etc/postfix/grizz-key.pem login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/pop3-login mail_access_groups: mail mail_location: /var/spool/mail/%u mbox_write_locks: fcntl dotlock mail_executable: /usr/local/libexec/dovecot/pop3 mail_plugin_dir: /usr/local/lib/dovecot/pop3 pop3_lock_session: yes auth default: mechanisms: plain apop login worker_max_count: 5 passdb: driver: passwd-file args: /usr/local/etc/dovecot.passwd passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix

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