FreeBSD Install Problem - QUAD CPU

[David Faulkner]

Hi All,

Have just signed up to this group to see if someone can help me out.

Our server details are as follows.

Server: IBM X3850 (88633SM)
QUAD CPU: 40K2522
HDD X 6: 40K1051
IBM ServeRAID 8i: 39R8729

We are attempting to install FreeBSD 6.2-RELEASE onto this machine and
are running into a problem getting the operating system to work happily
with the QUAD CPU arrangement.

We seem to be having issues getting the machine to boot with the 4
processors, receiving the following message

"panic: madt_probe_cpus_handler: CPU ID 38 Too High"

So to bypass this we disabled ACPI on boot. This allowed us to get past
the CPU error and continue to boot, however a little ways down the track
we noticed things like the ethernet adapater not getting picked up, and
the big problem - none of the disks getting recognised - obviously
posing a serious install problem!.

We have since tried a few things, one of which was removing all but one
of the CPU's. If we do this, and boot with ACPI enabled, all is totally
fine. All disks are found, and I receive no CPU panic error.

So it appears to me that by disabling ACPI in an attempt to bypass the
QUAD CPU problem, we are causing another issue behind the scenes.

The root of the problem now appears to be, that if we have anything over
1 CPU, directly after the kernel is loaded (when booting from the CD to
try and install), we receive the error message "panic:
madt_probe_cpus_handler: CPU ID 38 Too High". The moment a second CPU to
the machine....it bombs out.

Any help is warmly accepted.

Cheers

Dave




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