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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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