I'm upgrading a system which now has 2 Xeon processors, each with 4 HTT cores for a total of 16 cores. This needs to run on FreeBSD 5.3 for reasons I won't get in to.
The problem is that, the APIC IDs are: 0, 1, 2, 3, 18, 19, ... 52, 53. They're assigned in groups of 4. The first 4 cores...