kernel panic - Fatal Trap 12 on boot @svn 248711

Tue Mar 26 01:06:21 UTC 2013

After updating to svn 248711 I am getting a kernel panic and reboot when 
booting my system.  The last line I see while booting is:

Entropy harvesting interrupts: Ethernet point to point, and then
Fatal Trap 12 in kernel mode
then an automatic reboot.

I am currently booting into kernel.old @svn FreeBSD FBSD10 10.0-CURRENT 
FreeBSD 10.0-CURRENT #38 r248401: Sat Mar 16 21:39:04 CDT 2013 
root at FBSD10:/usr/obj/usr/src/sys/MYKERNEL  amd64

Is anyone else seeing this behavior?