kern/140361: [cpufreq] speed-stepping broken on PhenomII (acpi?)

Hannes freebsd at
Sun Sep 4 13:10:10 UTC 2011

The following reply was made to PR kern/140361; it has been noted by GNATS.

From: Hannes <freebsd at>
To: g <annona2 at>
Cc: bug-followup at
Subject: Re: kern/140361: [cpufreq] speed-stepping broken on PhenomII (acpi?)
Date: Sun, 04 Sep 2011 12:21:59 +0200

 Am Sonntag, 4. September 2011, 16:06:52 schrieb g:
 > Hi, Hanns.
 > I found this PR from search engine (google).
 > This PR is slightly old, though, i send this e-mail.
 > Phenom II or so will not have est(speed step) it's for intel cpu, and
 > Instead amd cpu will have powernow or hwpstate, i think.
 > Please send the results of followings.
 > 1) sysctl -a | grep freq (will show powernow or hwpstate related
 > things) 2) powerd -v ( make powerd run foreground and with verbose
 > mode ) and i hope powerd is doing its job.
 > Thanks in advance.
 > Gen <annona2 at>
 Thanks for your help, I am very interested in this, but do not have 
 access to the computer for the next ~6 weeks. I will get back to you 

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