Well, this is embarrasing. In my first post I said:
> The BIOS reports the CPU as an unknown processor, so > I'm wondering if a BIOS upgrade might help. However, > ubuntu works fine with the current version, which > makes me doubt that it would make any difference. I have just done a BIOS upgrade (to try and get booting from USB to work), and it cured the APIC problem! -- This message posted from opensolaris.org