On Apr 20, 2007, at 9:14 AM, Adam J Richardson wrote:
Finally, mptable shows what's really going on:
"MP Config Base Table Entries:
Processors: APIC ID Version State        Family Model Step Flags
             3       0x11    BSP, usable  6      8     3    0x387fbff
             0       0x11    AP, unusable 6      8     3    0x387fbff"

Apparently the "application processor" is "unusable", whatever that means. I am now stuck.

Is there a software fix for this, or do I have a broken CPU, unlikely as it seems? Any help is appreciated.

Does it seem likely that upgrading both CPUs to the highest Pentium- IIIs I can find, which I was thinking about doing anyway, would fix the problem?

It's more likely that updating the system BIOS and trying to tweak any settings related to SMP or ACPI might help. You might also try enabling or toggling the "PnP OS installed", to avoid having the BIOS configure stuff it doesn't need to boot, and leaving FreeBSD to assign IRQs itself...

If that doesn't help, I believe there's a freebsd-acpi list which contain people who can look at the dump of your BIOS and fix the broken IRQ assignments it is doing.

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