ipsec and zfs on FreeBSD 8.1 -- kernel problem

[Joshua Coats]

I've been experimenting with a FreeBSD 8.1 build, booting with a root in 
zfs, but I've found a problem with the kernel:  using the generic kernel 
works fine, but this particular server needs ipsec enabled, and the 
kernel I built with ipsec support for some reason can't mount the zfs 
partitions, despite loading what I believe are the necessary kernel 
modules (zfs.ko, opensolaris.ko) at startup.

Does special zfs support need to be built into the kernel?  The only 
modifications from the generic kernel for the ipsec kernel I'm using 
are:

options IPSEC
options IPSEC_FILTERTUNNEL
device crypto

This specific kernel config worked fine on FreeBSD 7.3, so I'm at a 
loss.

Thanks,

-- 
Joshua A. Coats
Unix Systems Administrator
Network and Infrastructure, RSSP-IT
University of California, Berkeley