Milter-greylist

I run greylist 2.0 on FC3 with sendmail and milter.
Recently it has started exiting.

I saw the requests here for core files and logs.
I recompiled it with -g and ran it under GDB, but I guess I didn't get
the threading right, because I have only the following to report.

Please let me know if there is any way I can gather more information
to help find what the problem is.  (I blanked out the email addresses
for the archive.)

[Thread -1261200464 (LWP 11004) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11015)]
milter-greylist: greylist: sigwait returned error: 0
[Thread -1261200464 (LWP 11015) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11025)]
milter-greylist: greylist: sigwait returned error: 0
[Thread -1261200464 (LWP 11025) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11086)]
milter-greylist: greylist: sigwait returned error: 0
milter-greylist: j8H4pKVv011085: skipping greylist because address
64.139.9.139 is whitelisted, (from=<jjjjj@...>,
rcpt=<mail@...>, addr=64.139.9.139)
[Thread -1261200464 (LWP 11086) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11094)]
milter-greylist: greylist: sigwait returned error: 0
[Thread -1261200464 (LWP 11094) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11111)]
milter-greylist: greylist: sigwait returned error: 0
milter-greylist: j8H4pwfi011110: skipping greylist because address
127.0.0.1 is whitelisted, (from=<kkkkk@...>,
rcpt=<Qqqqqqq#xxxxx@...>, addr=127.0.0.1)
[Thread -1261200464 (LWP 11111) exited]
milter-greylist: greylist: sigwait returned error: 0
[New Thread -1261200464 (LWP 11158)]
milter-greylist: greylist: sigwait returned error: 0
milter-greylist: greylist: mi_stop=2
milter-greylist: Final database dump: no change to dump
milter-greylist: Exiting

Program exited normally.
(gdb) where
No stack.
(gdb)