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SubjectRe: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH] for idle=C1halt, 2.6.5
Date
On Friday 23 April 2004 03:21, Len Brown wrote:
> On Thu, 2004-04-22 at 12:39, Jesse Allen wrote:
>
> > On the Shuttle AN35N, the C1 disconnect option default is auto. If you're
> > talking about this board, or another board Shuttle seemingly fixed, then I
> > can tell you that I haven't been able to get my to hang with vanilla kernels.
>
> Have you been able to hang the AN35N under any conditions?
> Old BIOS, non-vanilla kernel?
>
> > As for your patch, I get a fast timer, and gain about 1 sec per 5 minutes.
> > The only patch that seemed to work without a fast timer so far was the one
> > removed by Linus in a testing version. The AN35N has the timer override
> > bug.
>
> Hmm, I didn't notice fast time on my FN41, i'll look for it.
>
> I'm not familiar with the "one removed by Linux in a testing version",
> perhaps you could point me to that?

This is Maciej's patch - latest posting of it that I have seen,
http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-04/3174.html

His fix up of the 8259 ack issue (when used without routing 8254 pit into
io-apic INTIN0) successfully establishes a virtual wire mode input of the timer
which the nforce2 seems happy with albeit without being able to use
"nmi_debug=1"

It is that timer ack issue tied up with the integrated apic.
http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-04/2143.html

This refers to when it was in the 2.6.3-rc1-mm1
http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-02/2658.html

Regards
Ross.

>
> > Attached is the dmidecode for the AN35N.
>
> applied.
>
> thanks,
> -Len
>
>
>
>
>

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