fsck panic's -CURRENT gmirror and kernel

Greetings everyone:

With a February 1, 2010 -CURRENT, I experienced a kernel panic and running a
gmirror system so when I rebooted, it said /usr was not properly mounted and
gmirror said it will mount /usr pending fsck so it runs the fsck and after a
few minutes, gmirror complains and the kernel panics so I had to reboot from
the db> prompt.  It seems the only way to fix it is to boot in single user
mode, fsck /dev/mirror/gm0s1a and fsck /dev/mirror/gm0s1d so that fsck fixes
the problems and marks it clean before rebooting in multi-user mode.

Cheers,
Vince
Vincent Poy, Ph.D. - Astrophysics