I'm seeing the following errors on my Dovecot box when trying to replicate:

Nov 15 18:44:46 server1 dovecot: dsync-server(mark): Panic: file mbox-lock.c: line 799 (mbox_lock): assertion failed: (lock_type == F_RDLCK || mbox->mbox_lock_type != F_RDLCK) Nov 15 18:44:46 server1 dovecot: dsync-server(mark): Fatal: master: service(doveadm): child 21571 killed with signal 6 (core not dumped - set service doveadm { drop_priv_before_exec=yes })

And on the target I see:

Nov 15 17:47:02 server2 dovecot: dsync-server(mark): Error: read( server1.mdb.eu.com) failed: EOF

Does anyone know what is causing this? I help to solve this before I can put it live :-(

Here's my dovecot -n from server1:

# 2.2.7: /usr/pkg/etc/dovecot/dovecot.conf # OS: NetBSD 5.2 cobalt auth_mechanisms = plain login doveadm_password = secret doveadm_port = 12345 listen = 192.168.1.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_plugins = " notify replication" passdb { driver = passwd } plugin { mail_replica = tcp:server2.mdb.eu.com } protocols = imap service aggregator { fifo_listener replication-notify-fifo { mode = 0600 user = vmail } unix_listener replication-notify { mode = 0600 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service doveadm { inet_listener { port = 12345 } } service imap-login { inet_listener imap { port = 0 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl_cert =

Thanks.