After install - Fatal trap 18 ATA problem?

I'm trying to get FreeBSD installed on one of my systems and I'm 
getting the error stated below.  I did have FreeBSD 6-STABLE 
installed a few months ago on this very system.  The only change is 
that FreeBSD is now installed on the second harddrive instead of the 
first.  This is using the -CURRENT snapshot for this month.  The 
install goes just fine.  I also get a very similar error when I 
install 6.1 too.

This seems to be the same problem as:
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/stable/2006-03/msg00539.html

But I don't have a built-in compact flash reader attached via. ATA.

Full verbose boot+backtrace:
http://am-productions.biz/docs/boot-panic-script.txt.gz

rr232x: no controller detected.
ata0-slave: pio=PIO4 wdma=WDMA2 udma=UDMA100 cable=80 wire
ata0-master: pio=PIO4 wdma=WDMA2 udma=UDMA66 cable=80 wire
ad0: setting PIO4 on nForce2 Pro chip
ad0: setting UDMA66 on nForce2 Pro chip
ad0: 17206MB <IBM DJNA-371800 J78OA30K> at ata0-master UDMA66


Fatal trap 18: integer divide fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xc089b49f
stack pointer	        = 0x28:0xc0c20b64
frame pointer	        = 0x28:0xc0c20bec
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 0 (swapper)
[thread pid 0 tid 0 ]
Stopped at      __qdivrem+0x3b: divl    %ecx,%eax
db> bt
Tracing pid 0 tid 0 td 0xc0a02fb8
__qdivrem(219b700,0,0,0,0) at __qdivrem+0x3b
__udivdi3(219b700,0,0,0) at __udivdi3+0x16
ad_describe(c26e8580,c26e8580,c262c280,c265e400,c25ec200) at 
ad_describe+0x1b3
ad_attach(c26e8580) at ad_attach+0x1e7
device_attach(c26e8580,c0957850,c26e8580,c265e000,c265e400) at 
device_attach+0x58
device_probe_and_attach(c26e8580) at device_probe_and_attach+0xe0
bus_generic_attach(c25d2a80,c25d2a80,1,0,c26e8580) at 
bus_generic_attach+0x16
ata_identify(c25d2a80) at ata_identify+0x1c8
ata_boot_attach(0) at ata_boot_attach+0x3e
run_interrupt_driven_config_hooks(0,c1ec00,c1e000,0,c0450af5) at 
run_interrupt_driven_config_hooks+0x18
mi_startup() at mi_startup+0x96
begin() at begin+0x2c
db> ps
-- 
Anish Mistry