On Fri, 27 Feb 2009, Robert E. Blair wrote:

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> I'm confused on this.  I have cpuspeed installed - this contains no
> nodules.  It only has an executable and a startup script.  What has this
> to do with a kernel change?
>
> I did try installing the rpm and /sbin/modprobe powernow-k8 resulted in:
> FATAL: Error inserting powernow_k8
> (/lib/modules/2.6.18-128.1.1.el5/kernel/arch/x86_64/kernel/cpufreq/powernow-k8.ko):
> No such device
>

What does /proc/cpuinfo show.

-Connie Sieh
>
> Troy Dawson wrote:
> | I *think* what has to happen is we need to push out the new cpuspeed
> | that is in SL 5.3 to everyone
> |
> | https://bugzilla.redhat.com/show_bug.cgi?id=459441
> | http://rhn.redhat.com/errata/RHEA-2009-0098.html
> |
> | Basically, it looks like what happened was the powernow-k8 changes from
> | being built into the kernel to a kernel module.  And the cpuspeed needed
> | to be changed to understand this.
> |
> | Can someone test this out and see if it works for them.
> |
> | i386:
> |
> http://ftp.scientificlinux.org/linux/scientific/5rolling/i386/SL/cpuspeed-1.2.1-5.el5.i386.rpm
>
> |
> | x86_64:
> |
> http://ftp.scientificlinux.org/linux/scientific/5rolling/x86_64/SL/cpuspeed-1.2.1-5.el5.x86_64.rpm
>
> |
> |
> | Troy
> |
> | Dusan Bruncko wrote:
> |> Dear Troy,
> |>
> |> it is true also for i386 ...
> |>
> |> Dusan
> |>
> |> J S Jayakumar wrote:
> |>> Dear Troy,
> |>>
> |>>    unfortunately kernel  2.6.18-128.1.1.el5  does not support cpu
> |>> frequency scaling on AMD64 cpus.  We were using this feature on all
> |>> of our machines with the previous kernels.  Any solution to this
> |>> problem?
> |>>
> |>> J S Jayakumar
> |
> |
>
> - --
> Robert E. Blair, Room C221, Building 360
> Argonne National Laboratory (High Energy Physics Division)
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