Is this a gmirror bug?

[Peter Steele]

>Wouldn't it look like
>
>Filesystem          1K-blocks      Used     Avail Capacity  Mounted on
>/dev/mirror/gm0d      4058062   -377792   4111210   110%    /tmp
>/dev/mirror/gm0e     15231278   -113942  14126718   101%    /var
>
>then? I always assumed that a disk occupation > 100% would go into
>this reserved area, which would turn the Capacity field to be more
>than 100%, and not less than 0%? This is the case when I have more
>data on a UFS partition than it "is allowed to"...

I've seen this before a few times, but never something less than 0%.
I've reimaged the system to correct it. Will have to see if it happens
again...