ZFS panic in zfs_fuid_create

Wed May 27 16:58:22 UTC 2009

I updated my backup boxes to the latest and greatest ZFS code,
and started getting the following panic on them all (3 machines):

panic: zfs_fuid_create
cpuid = 1
Uptime: 1h28m48s
Cannot dump. No dump device defined.
Automatic reboot in 15 seconds - press a key on the console to abort

A quick google found kern/133020 with a patch from PJD that has fixed
it for me. Should it be in stable or does it break something else?