cyrus deliver fault tolerance

[John Fawcett]

I got the following log messages this morning:

Jun 21 08:23:03 romolo master[3814]: process 2191 exited, signaled to
death by 9
Jun 21 08:23:03 romolo kernel: swap_dup: Bad swap file entry 01b66010
Jun 21 08:23:03 romolo kernel: VM: killing process lmtpd
Jun 21 08:23:03 romolo kernel: swap_free: Bad swap file entry 01b66010

After this all mail for local delivery started bouncing with the following
reason:

> <xxx at yyyy.zzzz>: Command time limit exceeded: "/usr/lib/cyrus/bin/deliver"

After restarting cyrus everything went back to normal.

Is there any way to get cyrus to recover from a killed off lmtpd?

In cyrus.conf I have
lmtpunix      cmd="lmtpd" listen="/var/lib/imap/socket/lmtp" prefork=0

Thanks,
John