strange message appearing in a fresh current

[Divacky Roman]

kernel trap 22 with interrupts disabled
npxdna: fpcurthread == curthread 1 times

I am getting this quite often (uptime is about 2 minutes and I've got it
at least 3 times)

spravci ~# uname -a
FreeBSD spravci.mzm.cz 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Fri Jun 18
12:44:39 C
EST 2004     root at spravci.mzm.cz:/usr/obj/usr/src/sys/MYKERNEL  i386
spravci ~#

built for i686 cpu (amd duron) with -O -pipe

roman