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    SubjectWARNING: unexpected IO-APIC on 2.4.19-pre4-ac3
    I'm getting the following with 2.4.19-pre4-ac3 on boot and in dmesg. Was also
    getting the message on stock 2.4.18 as well. The message told me to mail the
    list so I'm just following instructions :-).

    testing the IO APIC.......................

    IO APIC #1......
    .... register #00: 01008000
    ....... : physical APIC id: 01
    WARNING: unexpected IO-APIC, please mail
    to linux-smp@vger.kernel.org
    .... register #01: 00178020
    ....... : max redirection entries: 0017
    ....... : PRQ implemented: 1
    ....... : IO APIC version: 0020
    .... register #02: 00000000
    ....... : arbitration: 00

    I know the message is coming from /linux/arch/i386/kernel/io_apic.c

    printk(KERN_DEBUG "....... : physical APIC id: %02X\n",
    reg_00.ID);
    if (reg_00.__reserved_1 || reg_00.__reserved_2)
    UNEXPECTED_IO_APIC();

    reg_00.__reserved_1 is from struct IO_APIC_reg_00 defined in
    /include/asm-i386/io_apic.h

    Any ideas what the apic would return to cause this is coming up? I'm using
    an i860 chipset with a dual Xeon.

    Thanks,

    Troy

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