Subject: RE: Why Pstate could make NetBSD buggy ?
To: None <tech-kern@NetBSD.org>
From: =?iso-8859-1?Q?J=E9r=F4me_Loyet?= <jerome@loyet.net>
List: tech-kern
Date: 06/03/2006 19:08:13
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> > >>>investigation, the ONLY difference is the version of the
> > BIOS. and
> > >>>the difference is:
> > >>>The Pstate has been disabled on buggy BIOS and vcore as been
> > >>>augmented by 0.1v
> > >>Are you booting a NetBSD kernel with ACPI support?
> > > No, I'm using GENERIC kernel. Why ?
> >
> > You are using APM though. Pstate is for power state, and
> power states
> > can be running, standby, suspend, etc. I guess there's an
> issue there.
> > Try running a kernel with APM disabled as well.
> >
>
> The Pstate has been disabled because it's not well supported
> by linux kernel < 2.6.15 The vcore has been increased to
> speed up the CPU.
>
> Pstate is the thing from via and amd equivalent to SpeedStep
> from Intel.
> It's not managed by acpi or APM.
>
> I got thoses informations from the dedibox administrator.
I've recompile the -stable GENERIC kernel without the ENHANCED_SPEEDSTEP
option
After 2H of really hight charge on the processor, it seams not to be buggy
anymore.
I trying to understand why when I would have found the C7 processor
datasheet.
++ Jerome
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