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Re: SGI 1200 and the scsi/apic problem

To: Seth Mos <knuffie@xxxxxxxxx>
Subject: Re: SGI 1200 and the scsi/apic problem
From: Keith Owens <kaos@xxxxxxxxxxxxxxxxx>
Date: Fri, 23 Nov 2001 20:36:05 +1100
Cc: Matthijs van der Klip <matthijs.van.der.klip@xxxxxx>, Linux XFS Mailing List <linux-xfs@xxxxxxxxxxx>
In-reply-to: Your message of "Fri, 23 Nov 2001 10:25:11 BST." <4.3.2.7.2.20011123102219.02e14478@xxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
On Fri, 23 Nov 2001 10:25:11 +0100, 
Seth Mos <knuffie@xxxxxxxxx> wrote:
>At 10:09 23-11-2001 +0100, Matthijs van der Klip wrote:
>>Several months ago I had trouble getting Release 1.0.1 to work on an SGI
>>1200 machine. I found several references to broken firmware of the Intel
>>440GX motherboard and a fix telling me to boot the kernel with the
>>parameter 'apic'.
>>
>>Now this trick doesn't seem to work with release 1.0.2a. I get lots of
>>scsi timeouts and can't get it to boot properly on an 1200. Does anyone
>>have any ideas? Is the 'apic' parameter uninplemented in this new kernel?
>>Am I convicted to use an older kernel?
>
>Does the system boot properly without the apic option? A lot has happend 
>between the 1.0.1 (2.4.3 kernel) and 1.0.2 (2.4.9 kernel). It might just 
>work now or have a workaround implemented.
>
>The scsi timeouts might also be related to the new style aic7xxx driver. 
>Maybe someone from SGI which has experience with those machines can comment 
>on this.

No, this is a generic problem with the 440GX motherboards, 1200 uses
that m/b.  The PCI routing does not work correctly on a uni-processor
kernel, booting with an SMP kernel or UP but using the apic table
works.  Blame Intel for not providing info on the 440GX bugs.  RH 7.2
install has this problem on a 1200, installing with apic worked.  I
don;t know iof the XFS 1.0.2 installer supports the apic option or not,
AFAIK it was a RH patch.


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