Re: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH]for idle=C1halt, 2.6.5

[Len Brown]

On Tue, 2004-04-27 at 13:02, Arjen Verweij wrote:

> After having his box run with cat /dev/hda > /dev/null for a night
> straight no lockup has occured. The brand of his motherboard is Shuttle.

My shuttle is a FN41 board in a SN41G2 system.

I found "rev 1.0" BIOS (FN41S00X of 12/18/2002) on Shuttle's ftp site
and downgraded to that, but still no hang.

It may be this board never hangs no matter what,
or perhaps C1 disconnect was simply disabled in that BIOS
b/c there was no option for it in Advanced Chipset Features
like there is for the most recent BIOS.

Other things about my board.
I run "optimized defaults", I don't overclock anything.
Processor is an AMD XP 2200+
Does anybody else see the hang with this processor model?
I wonder if the hang is processor model or speed dependent?

> Does anyone have some input on how to tackle this problem?

Unfortunately I don't have tools for debugging nvidia + amd hardware.
I would expect that those companies do, however.  So encouraging them
to reproduce the hang internally may be the best way to go.

> buy Len the cheapest broken nforce2 board I can find at pricewatch.com and
> have it shipped to his house :)

I got tangled in this b/c this board (actually, the reference BIOS for
this chipset) had some unusual ACPI related failures.  If the failures
turn out to be related to ACPI, I'll do what I can to help.  But I
expect that hardware debugging tools may be necessary before the
hang issue is completely explained and solved.

-Len


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