I also have similar problem.

On Quadra 630(CPU is exchanged to "full" 040) and PowerBook 550c
(also have "full" 040), I tried booting the kernel built from
-current source at Febrary 18.
I built kernels with configuration GENERIC for Quadra 630 and
GENERICSBC for PowerBook.

When trying to boot, immediately panics and falls into DDB,
with "FPU trap" register logs.

With -current kernel source at 2002/12/01, there is no problem
when booting.

-----------------------------
Hiroshi Noguchi
ngc@ff.iij4u.or.jp
http://www.ff.iij4u.or.jp/~ngc/