[Dovecot] dsync-server panic/fatal errors

[IT geek 31]

Would anyone like to hazard a guess what these errors mean:

Nov 11 18:57:04 server2 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 11 18:57:04 server2 dovecot: dsync-server(mark): Fatal: master:
service(doveadm): child 3119 killed with signal 6 (core not dumped - set
service doveadm { drop_priv_before_exec=yes })

Getting this replication working is driving me nuts! :'-(

Any help would be appreciated.


-Mark