ZFS Kernel Panic during long copy from zpool -> zpool

[Nicholas Veeser]

Don't know if this is a know issue.
Hopefully this is the right place
I am running 8.0 stable.

I have two zpools

1. 4 250G drives (version 13)  (Sil3124 SATA)
2. 4 500G drives (version 14)  (Sil3114 SATA)

I am copying data from 1 -> 2

running rsync for 1-8 hours, I get a kernel panic.

Basically it fails an assertion somewhere.
Next time it happens, I will get exact details of where the assertion is.

I am also trying to make sure I get an actual kernel dump, if that is useful.

What other information, investigation, etc would be useful?
How should I proceed?

Nicholas