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List:       linux-smp
Subject:    Re: Kernel 2.4.21 APIC error
From:       "Earle R. Nietzel" <nietzel () rhinobox ! org>
Date:       2003-06-21 20:04:40
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On Wed, 2003-06-18 at 05:32, Ricky McInnes wrote:
> Hello,
> 
> 	Emailing this because of the message via syslog.  
> 
> Heres the output:
> 
> Jun 17 23:23:45 blazin kernel: IO APIC #2......
> Jun 17 23:23:45 blazin kernel: .... register #00: 02000000
> Jun 17 23:23:45 blazin kernel: .......    : physical APIC id: 02
> Jun 17 23:23:45 blazin kernel: .......    : Delivery Type: 0
> Jun 17 23:23:45 blazin kernel: .......    : LTS          : 0
> Jun 17 23:23:45 blazin kernel: .... register #01: 00178020
> Jun 17 23:23:45 blazin kernel: .......     : max redirection entries: 0017
> Jun 17 23:23:45 blazin kernel: .......     : PRQ implemented: 1
> Jun 17 23:23:45 blazin kernel: .......     : IO APIC version: 0020
> Jun 17 23:23:45 blazin kernel: .... register #02: 00178020
> Jun 17 23:23:45 blazin kernel: .......     : arbitration: 00

register #02 seems to be the bad register, it has bits "00178020" where
something more like "02000000" would be more appropriate.


> Jun 17 23:23:45 blazin kernel: An unexpected IO-APIC was found. If this kernel 
> release is less than
> Jun 17 23:23:45 blazin kernel: three months old please report this to 
> linux-smp@vger.kernel.org
> 
> 	This is an Intel D865PERL motherboard with a 2.4ghz P4 800MHZ FSB with 
> Hyper-Thread enabled in the Bios.  I compiled the kernel with SMP support, 
> and  2 CPUS do show up, BUT, a "cat /proc/interrupts" shows this:
> 
> CPU0       CPU1
>   0:      32731          0    IO-APIC-edge  timer
>   1:        223          0    IO-APIC-edge  keyboard
>   2:          0          0          XT-PIC  cascade
>   8:          1          0    IO-APIC-edge  rtc
>   9:          0          0   IO-APIC-level  acpi
>  12:       6301          0    IO-APIC-edge  PS/2 Mouse
>  14:       9114          0    IO-APIC-edge  ide0
>  15:        110          0    IO-APIC-edge  ide1
>  16:      11619          0   IO-APIC-level  usb-uhci, usb-uhci, nvidia
>  17:       4324          0   IO-APIC-level  Intel ICH5
>  18:          0          0   IO-APIC-level  usb-uhci
>  19:        258          0   IO-APIC-level  usb-uhci, eth0
> 

It seems that these boards have the interrupts going to CPU0, hmmmm any
one know whats going on with these boards?


> 	Anything I can help with?
> 
> Ricky McInnes
> 
> 
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-- 
Earle R. Nietzel <nietzel@rhinobox.org>

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