Messages in this thread | | | From | "Protasevich, Natalie" <> | Subject | Re: 48GB NUMA-Q boots, with major IO-APIC hassles | Date | Wed, 15 Jan 2003 11:32:26 -0600 |
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>(3) setup_ioapic_ids_from_mpc() panic()'s. >-- the clustered_apic_mode check and/or its current equivalent >-- no longer suffices with 16 IO-APIC's. Turn off all the >-- renumbering logic and hardcode the numbers to alternate >-- between 13 and 14, where they belong. >-- The real issue here is that the phys_id_present_map is not >-- properly per- APIC bus. The physid's of IO-APIC's are >-- irrelevant from the standpoint of the rest of the kernel, >-- but are inexplicably used to identify them throughout the >-- rest of arch/i386/ when physids are nothing resembling >-- unique identifiers in multiple APIC bus systems. This
I also have a problem with setup_ioapic_ids_from_mpc(). I opt for 0xFF as max io_apic phys_id (and leave it alone!), because even though we have fewer IO-APICs than that, I'd like to keep the actual numbers from MP table or ACPI, because all APIC and IO-APIC id's on ES7000 are 8 bit, unique, and meaningful (used as a bitmaps) when I have to implement CPU, PCI hot plug and dynamic partitioning (I hate to think of possible confusing tables and dependencies I will have to maintain otherwise...).
Could this routine be made with alternative architecturally private path (as a hook or with a hook inside)?
Thanks,
--Natalie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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