Bug 239724 - "powernow-k8: Processor cpuid 70ff1 not supported" on Athlon64 3800+ AM2 which supports Cool'n'Quiet
"powernow-k8: Processor cpuid 70ff1 not supported" on Athlon64 3800+ AM2 whic...
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
athlon Linux
medium Severity medium
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Assigned To: Kernel Maintainer List
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2007-05-10 15:31 EDT by Tomasz Ostrowski
Modified: 2007-11-30 17:12 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-05-15 15:05:47 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Linux Kernel 8423 None None None Never

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Description Tomasz Ostrowski 2007-05-10 15:31:12 EDT
Description of problem:
Powernow-k8 driver does not load - it shows a message
    powernow-k8: Processor cpuid 70ff1 not supported
on my new AMD Athlon64 3800+ on AM2 connector (Family: 15 Model: 15 Stepping:
1), which does support Cool'n'Quiet. Because of this I cannot use cpufreq in my

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Boot a Fedora 7test4 Life CD on affected system
2. Watch kernel messaged

Actual results:
powernow-k8: Processor cpuid 70ff1 not supported
powernow-k8 driver not loaded and cpuspeed not working

Expected results:
powernow-k8 driver loaded and working cpuspeed

Additional info:
Additional info and proposed (trivial) patch is on Linux Kernel Bugzilla:
Comment 1 Dave Jones 2007-05-15 15:05:47 EDT
fixed in cvs, will be in next build.

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