Fatal trap 12: page fault while in kernel mode.

[Tim Wickberg]

I just rebuilt the kernel ~1 hour ago. GENERIC configuration, on an IBM 
T40 (Pentium M 1600mhz, 512mb ram), and i get this (fatal) error on boot:

------------
cd0: cd present [101280 x 2048 byte records]
Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0x2f
fault code		= supervisor read, page not present
instruction pointer	= 0x8:0xc024b889
stack pointer		= 0x10:0xc05da904
frame pointer		= 0x10:0xc05da948
code segment		= base 0x0, limit 0xffffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= interupt enabled, resume, IOPL = 0
current process		= 0 (swapper)
current thread		= pri 12
interrupt mask		=
kernel: type 12 trap, code=0
Stopped at	dev_dstrategy+0x31:	movl	0x30(%eax),%edx
db>