Kernel panic on zfs import

[Joshua Isom]

I've been using ZFS on root for a few years now.  Today I noticed an 
error with /etc/localtime.  I tried deleting it, and recreating it with 
bsdconfig since I thought that would be fastest for me to fix.  It still 
listed the error but with no filename.  I think I also started a scrub 
in the background.  A little while later the system got stuck in a panic 
and reboot cycle.  I downloaded the 10.1 ISO to try to fix it.  Every 
time I try to import from the fixit it panic from zio_checksum_verify. 
What options do I have to try to recover the system?  Is there an 
illumos fixit that might help possibly?