make installworld fails on releng9

[Benjamin Kaduk]

On Sat, 29 Oct 2011, Chuck Burns wrote:

> On Saturday, October 29, 2011 1:13:58 AM Benjamin Kaduk wrote:
>>
>> Are you running installworld in single-user mode?
>> What is the value of kern.securelevel?
>>
>> -Ben Kaduk
>
> Yes, I was running in single-user mode, and kern.securelevel was never
> modified, and is currently showing as "-1"
>
> Also, I am running zfs root, if that makes a difference

Hmm, ZFS root is indeed potentially interesting.  Marco, are you also on 
ZFS root?

Have you run a ZFS scrub recently?  (That being about the limit of my ZFS 
knowledge, unfortunately.)

It's pretty puzzling why only this handful of immutable files would 
trigger an issue, though.

-Ben Kaduk