Subject: Re: SMP stability issues
To: None <>
From: Chris Rendle-Short <>
List: tech-smp
Date: 11/11/2006 10:00:38
On Fri, 10 Nov 2006 22:14:47 +0100, Lars Nordlund <> wrote:
> Ah, the good old Abit VP6 motherboard. I have one myself. It was very
> cheap and stable. At least until the capacitors started to explode.. I
> had them replaced but it was never quite as stable as it once had been.
> I could not get it to draw graphics without hanging rock solid after a
> few seconds. No matter what graphics card I used (or OS). I also tried
> switching power supply but it did not help. In textmode it was kind of
> ok. Could multi-job compile for several days without showing any
> problems.
> These days one of the CPUs is doing its duty in another (non-SMP)
> motherboard, and the other is resting peacefully in the ever growing
> pile of old junk in my home lab..
> Best regards,
> 	Lars Nordlund

Yes, I had capacitor problems too. It drove me crazy trying to work out what was going on until I read about the Capacitor Problem ( I replaced them all, and it has been perfectly stable ever since. Well, under Linux anyway (and NetBSD on one CPU).

On Fri, 10 Nov 2006 13:52:55 -0500, "Perry E. Metzger" <> wrote:
>>> Not really -- it is for machines that have ACPI. In general, I've been
>>> finding of late that many ACPI supporting boxes just don't run right
>>> if you don't use ACPI...
>> .. to the extent of often needing to build custom INSTALL kernels
>> with acpi on i386..
> Indeed. I've had horrible instability trying to do installs without
> ACPI on a few times.
> Anyway, I think the general message is "if your machine has ACPI,
> try things with ACPI on if you're having problems -- manufacturers
> aren't testing non-ACPI very well any more."
> Perry

Ah, now this is interesting. I did not realise that there was problems running a non-ACPI kernel on an ACPI system.

Thanks for the info guys, I will build GENERIC.MPACPI and see how it goes.