I have server that reached the maximum amount of disk space. After making some room for it work Cyrus started to drop this messages
Oct 17 17:34:46 mail cyrus/master: process 13747 exited, signaled to death by 7 Oct 17 17:34:46 mail cyrus/master: service imap pid 13747 in BUSY state: terminated abnorma lly
From what I researched this seems related to some file corruption. Although, the service starts it keeps dying.
Any help on this highly appreciated.