kernel panic with greater that 8 GB of memory

[Steve Kargl]

On Wed, Dec 01, 2004 at 04:47:51AM -0500, Ketrien I. Saihr-Kenchedra wrote:
> On Wed, 1 Dec 2004, David O'Brien wrote:
> 
> >There is no 'ccNUMA' setting in the BIOS.  A multi-processor Opteron is a
> >NUMA architecture machine regardless of any BIOS settings.  I.E. there is
> >no way to disable that a MP Opteron is a NUMA machine.
> >The setting of interest is should the BIOS round-robin interleave
> >physical addresses across the NUMA nodes[*].  The reference AMI BIOS
> >refers to this as "Node Interleaving".  It should be "DISABLED".  Or if
> >the BIOS speaks of the SRAT table, it should be "ENABLED".  While FreeBSD
> >doesn't use the SRAT table (and cannot until ACPI 3.0 BIOS's); turning on
> >the SRAT turns off node interleaving.
> 
> David, trying very hard to be nice, the S2882's a 'Special Case.'
> Where special should be taken as 'short bus.' VERY short bus.
> 
> On the S2882/S2885, and even the S4882, the BIOS specifically says, and I
> quote: 'ccNUMA Support.' No joke. The beauty is that ccNUMA is, you got
> it, SRAT Table Control, which _disables_ interleave completely. Beautiful,
> huh?

My BIOS does not have "ccNUMA Support" anywhere.  During POST I see

AMIBIOS 2003(c), American Megatrends, Inc.
BIOS Date: 07/07/04 11:11:45 Ver 08.00.10
TYAN High-End Dual AMD Opteron BIOS v2.03


-- 
Steve