2006-01-21 16:57:28

by Thomas Meyer

[permalink] [raw]
Subject: 2.6.16-rc1-g3ee68c4: powernow-k7: -ENODEV

I switched my config from up to smp support with 2 processors.

trying to modprobe powernow-k7 gives me now:
"
cpufreq-core: trying to register driver powernow-k7
cpufreq-core: adding CPU 0
cpufreq-core: initialization failed
cpufreq-core: no CPU initialized for driver powernow-k7
cpufreq-core: unregistering CPU 0
"

any ideas?

with kind regards
Thomas




2006-01-22 05:19:49

by Dave Jones

[permalink] [raw]
Subject: Re: 2.6.16-rc1-g3ee68c4: powernow-k7: -ENODEV

On Sat, Jan 21, 2006 at 05:57:25PM +0100, Thomas Meyer wrote:
> I switched my config from up to smp support with 2 processors.
>
> trying to modprobe powernow-k7 gives me now:
> "
> cpufreq-core: trying to register driver powernow-k7
> cpufreq-core: adding CPU 0
> cpufreq-core: initialization failed
> cpufreq-core: no CPU initialized for driver powernow-k7
> cpufreq-core: unregistering CPU 0
> "

powernow-k7 doesn't support SMP.
The ubuntu folks tried to make single CPUs work with a SMP kernel,
but it still didn't work out aparently. The only K7's with powernow
aren't SMP capable anyway iirc.

Dave

2006-01-22 23:12:37

by Patrick McFarland

[permalink] [raw]
Subject: Re: 2.6.16-rc1-g3ee68c4: powernow-k7: -ENODEV

On Sunday 22 January 2006 00:19, Dave Jones wrote:
> On Sat, Jan 21, 2006 at 05:57:25PM +0100, Thomas Meyer wrote:
> > I switched my config from up to smp support with 2 processors.
> >
> > trying to modprobe powernow-k7 gives me now:
> > "
> > cpufreq-core: trying to register driver powernow-k7
> > cpufreq-core: adding CPU 0
> > cpufreq-core: initialization failed
> > cpufreq-core: no CPU initialized for driver powernow-k7
> > cpufreq-core: unregistering CPU 0
> > "
>
> powernow-k7 doesn't support SMP.
> The ubuntu folks tried to make single CPUs work with a SMP kernel,
> but it still didn't work out aparently. The only K7's with powernow
> aren't SMP capable anyway iirc.

ATM, theres a work around for that. -386 kernels don't have smp enabled, and
powernow-k7 works fine for them. So if you're using Ubuntu, and absolutely
need powernow-k7 to work, don't use the -k7 kernel, use the -386 kernel.

https://launchpad.net/distros/ubuntu/+source/linux-source-2.6.15/+bug/26713

--
Patrick "Diablo-D3" McFarland || [email protected]
"Computer games don't affect kids; I mean if Pac-Man affected us as kids,
we'd all be running around in darkened rooms, munching magic pills and
listening to repetitive electronic music." -- Kristian Wilson, Nintendo,
Inc, 1989