8.1-RELEASE - fatal trap 12 during install

[Jacob Lambert]

Hello everyone,

 I've got a shiny new Supermicro H8QG6-F w/ 4x Opteron 6168 12 core
CPUs and 128GB of DDR3 1333 ECC RAM onto which I've been trying to
install 8.1-RELEASE-amd64.

 Here's the error I get when I disable ACPI at the boot loader menu:

-- snip --
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xffffff8000237038
fault code			= supervisor read, page not present
instruction pointer	= 0x20:0xffffffff801e1466
stack pointer		= 0x28:0xffffffff81281820
frame pointer		= 0x28:0xffffffff81281850
code segment		= base 0x0, limit 0xfffff, type 0x1b
				= DPL 0, press 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 0 (swapper)
trap number		= 12
panic: page fault
cpuid = 0
Uptime: 1s
Automatic reboot in 15 seconds - press a key on the console to abort
-- snip --

 At first, I assumed the error meant that I must have some bad memory,
so I ran a memtest on everything and it came back w/ no errors.  Next,
I yanked three of the processors and all but 16GB of the memory and
retried the install but I got the same error.

 I seem to get a bit further with 8.0-RELEASE-amd64 and disabling ACPI
but it hangs at 'Trying to mount root from ufs:/dev/md0'

-- snip --
pci1I <PCl bus> on pcib3
vgapci0: <VGA-compatible displag> mem 0xdb000000-0xdbffffff,0xdfbfc000-0xdfbffff
f,0xdf000000-0xdf7fffff irq 15 at device 4.0 on pci1
ohci4: <UHCI (generic) USB controller> mem 0xdefff000-0xdeffffff irq 14 at devic
e 20.5 on pci0
ohci4: Could not allocate irq
device_attach: ohci4 attach returned 6
cpu0 on motherboard
hwpstate0: <Cool`n'Quiet 2.0> on cpu0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xce7ff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: UGH <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
atkbdc0: <Kegboard controller (i8042)> at port 0x60,0x64 on isa0
atrtc0: <AT Real Time Clock> at port 0x70 irq 8 on isa0
atrtc0: Warning: Couldn't map Interrupt.
fdc0: cannot reserve interrupt line
ppc0: cannot reserve I/U port range
uart0: <16550 or compatible> at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
uart1: <16550 or compatible> at port 0x2f8-0x2ff irq 3 on isa0
Timecounter "TSC" frequency 1900008532 Hz qualitg 800
Timecounters tick everg 1.000 msec
md0I Preloaded image </boot/mfsroot> 4194304 bgtes at 0xffffffff80e17dc0
Trying to mount root from ufs:/dev/md0
-- snip --

 I even read in the forums that I might have some luck w/ 6.4-RELEASE
but all I get with 6.4 is:

-- snip --
kmem_suballoc: bad status return of 3.
panic: kmem_suballoc
Uptime: 1s
-- snip --


 I've successfully installed both Ubuntu 10.10 amd64 and Windows
Server 2k8 on the machine and I even ran some hardware tests overnight
but received no errors.

I'm not sure where to go from here. Any ideas?

If it helps, here's a link to the motherboard information
http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8QG6-F.cfm

---
-jacob