Re: SMP problem with 2.4.18

John Heil (kerndev@sc-software.com)
Tue, 9 Apr 2002 14:24:16 -0700 (PDT)


On Tue, 9 Apr 2002, David Shirley wrote:

> Date: Tue, 09 Apr 2002 10:59:07 +0800
> From: David Shirley <dave@cs.curtin.edu.au>
> To: linux-kernel@vger.kernel.org
> Subject: SMP problem with 2.4.18
>
> Hi guys,
>
> I am having a problem with a new dual box, its a dual athlon 1900+,
> in a Asus A7M-266-D. When I try using MPS 1.4 the kernel gets upto
> printing out CPU1:<T0:... but no further.
>
> When I switch to MPS 1.1 everything works correctly?
>
> After doing some research I found that by adding the noapic and apm=off
> kernel parameters everything started to work with 1.4.
>
> Is this normal? Is it better to run with 1.1 or 1.4 and noapic?
>
> If you need more info please ask :)
>
> Thanks
> Dave
>

Run it set at 1.1 only.
1.1 will let you use your apic etc

1.4 is stricter. Mfgrs don't abide by 1.4 correctly/completely.
I don't know of any 1.4 capable board that works right in 1.4 mode.

Johnh

>
>
>
> /-----------------------------------
> David Shirley
> System's Administrator
> Computer Science - Curtin University
> (08) 9266 2986
> -----------------------------------/
>
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John Heil
South Coast Software
Custom systems software for UNIX and IBM MVS mainframes
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