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APIC Error 04(04) Kernel Breakage

DISCUSSION Tony (Unihost) 3 participants 3 messages Aug 10, 2004

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Hi,

I've been referred to the LKML by a few different people regarding this problem so here goes. I've googled for the problem and can find other people with similar problems but as yet can find no one that has resolved the issue.

An example is here: http://www.ussg.iu.edu/hypermail/linux/kernel/0201.2/1308.html//

The Mobo in question is an Asus A7M266-D, currently running the latest BIOS and a pair of MP1600 Procs. All is functioning well (apart from crashes from the AACRAID driver) I'm runnning Kernel 2.6.3. It is a production server which makes debugging all the more difficult.

When the server was taken down a week or two ago for an upgrade, two AMD MP2800 processors were installed. Upon reboot there was a flood of /

"APIC error on CPU0: 04(04)"

/
The server remains like this until power cycled. When the original MP1600 procs are installed again it all runs fine. I've seen various explainations from "Asus won't divulge any info to Linux Developers" to "Just turn off APIC". So I'm out of ideas and people to ask. Can anyone help me solve this issue?

Regards

Tony

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Quoted 4 lines · Tony (Unihost)

When the server was taken down a week or two ago for an upgrade, two AMD MP2800 processors were installed. Upon reboot there was a flood of /

"APIC error on CPU0: 04(04)"

Its indicating real problems. I take it they are always on CPU 0 ?

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In reply to Tony (Unihost)

From: Tony (Unihost) <[email protected]>
Date: Tue, Aug 10, 2004 at 12:58:01PM +0100

Quoted 10 lines

The Mobo in question is an Asus A7M266-D, currently running the latest BIOS and a pair of MP1600 Procs. All is functioning well (apart from
crashes from the AACRAID driver) I'm runnning Kernel 2.6.3. It is a
production server which makes debugging all the more difficult.

When the server was taken down a week or two ago for an upgrade, two AMD MP2800 processors were installed. Upon reboot there was a flood of /

"APIC error on CPU0: 04(04)"

I seem to remember a post not too long ago on this list where problems like this were solved by a bios update to the latest bios.

Try searching lkml-archives for a post titled 'Asus A7M266-D, linux-2.6.7 and APIC' of the 20th July 2004.

I'll quote a relevant part here:

Quoted 23 lines
Quoted 23 lines

Date: Wed, 21 Jul 2004 19:53:13 -0700 (PDT)
From: Andy Biddle <andybXchainsaw.com>
To: linux-kernelXvger.kernel.org
Subject: Re: Asus A7M266-D, Linux 2.6.7 and APIC

Mikael,

You were absolutely right. There was an update that I couldn't see from the website. Even better news is that it totally solved my problem. No APIC problems at all now!

Thanks a TON for the help!

Quoted 6 lines · Mikael Pettersson
Quoted 5 lines · Andy Biddle

Well I had a few minutes this morning, so I swapped CPU0 and 1 and still have the same results. Boots in single proc mode, APIC errors on a dual-proc kernel. (For what it's worth, both CPUs are recognized by the BIOS and report "MP capable".

Quoted 7 lines
Quoted 7 lines
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Quoted 1 line

I checked the Asus website and I'm at the latest beta kernel...

No you're not. You have 1011.003, while the latest beta BIOS is 1011 beta 05.

ftp.asuscom.de pub/ASUSCOM/BIOS/Socket_A/AMD_Chipset/AMD_760_MPX/A7M266-D/

Good luck, and next time search the archives :-)

Jurriaan

Quoted 1 line

No manual is ever necessary.

May I politely interject here: BULLSHIT. That's the biggest Apple lie of all!
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