Racoon breakage with recent kernel

[Mike Durian]

Sometime between Feb 9 and June 9 something changed in the kernel
that causes racoon to fail.  I'm afraid I don't have a verbatim
error message handy, but my notes (from running racoon with debugging
enabled, in the foreground) say the error was in pk_sendupdate
and the errno was, ENOBUFS.

I believe this message is reporting the same problem I'm seeing:

http://groups.google.com/groups?q=racoon+%22No+buffer+space+available%22&hl=en&lr=&ie=UTF-8&selm=20040606025301.GB41345%40mehnert.org&rnum=1

Does anybody know what is going on?

Thanks,
mike