zfs crypto discuss - Aug 2007 - need debug help for encrypted dataset mount failure.

I need some help debugging a problem without mounting encrypted datasets
after a pool import.

What works:

Create a pool with an encrypted data set.
Put data in it - we can see it gets encrypted.
zfs umount -a
zfs mount -a
Can read back the clear text from disk.

What fails:

zpool export
zpool import

Even if we get the key into the spa_t before we attempt to mount
the datasets I still can''t mount the dataset properly.

What I''ve tried:

Added a "null" encryption cipher - this does a bcopy instead of a
crypto_encrypt/crypto_decrypt but otherwise does everything else
the same.

This almost works.  I can import the pool, get the datasets mounted
and even read the data back.  However just after the import status shows
an error, but if I scrub the error goes way.

What I need:

I need someone to help me debug where the problem is.

src is:
$ hg clone ssh://anon at hg.opensolaris/hg/zfs-crypto/zfs-crypto-gate

or: http://src.opensolaris.org/source/xref/zfs-crypto/zfs-crypto-gate/

-- 
Darren J Moffat