[issue1282] panic (trap 12) when booting SMP kernel on Atom 330 (dual core)

Matthew Dillon dillon at apollo.backplane.com
Mon Feb 16 11:46:03 PST 2009

:Thomas Nikolajsen (via DragonFly issue tracker) wrote:
:> I have a D945GCLF2, with atom 330, works nice with SMP,
:> just leave `options APIC_IO' out of kernel config.
:Do you think we can debug the cause of this problem?  I'd like to slowly fix APIC_IO support so that in the distant future it could become a default (instead of using PIC).
:  simon

    This just goes back to the ACPI interrupt routing issue.  The PCI bios
    just doesn't work on most PCs.  APIC_IO is broken because we currently
    rely on the MP table, and the MP table does not supply the correct
    interrupt routing information on many BIOSes.
					Matthew Dillon 
					<dillon at backplane.com>

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