[CentOS] x86 -64 sys...powernow-k8???

[William A. Mahaffey III]

Jim Perrin wrote:

>>...just wondering what that msg means...was hitting really regular then
>>stopped...like it was hitting /var/log/messages bout every 3 secs
>>
>>
>>    
>>
>
>Bit of googling turned up a statement from the AMD kids that says the following
>We've started seeing this internally in AMD QA. The bit
>that the processor uses to indicate that it is in the
>process of changing frequencies (aka the pending change
>bit) is not clearing. The powernow-k8 driver cannot
>change frequencies until the previous change has completed.
>
>Because this is happening on the hardware side, my best
>guess is that the problem is not software related. We've
>reported the problem to the AMD hardware debug team and
>they're investigating. I'll put out a patch when we have
>a solution.
>
>-Mark Langsdorf
>AMD, Inc.
>
>
>The other information I've seen says that it's likely related to
>processor speed stepping and not recovering properly etc.
>
>--
>Jim Perrin
>System Architect - UIT
>Ft Gordon & US Army Signal Center
>  
>

There was something on the SuSE AMD64 list a few weeks back about this. 
In fact, what you googled up looks like part of that thread verbatim. 
They said there that it is something in generic kernel code (not SuSE-, 
& presumably CentOS-, specific) & that folks were toiling furiously to 
get it fixed. Might be a while till it makes it into more settled EL 
code, however ....

-- 
	William A. Mahaffey III
---------------------------------------------------------------------
	"Freedom is never more than one generation away from
	 extinction. We didn't pass it to our children in the
	 bloodstream. It must be fought for, protected, and handed on
	 for them to do the same, or one day we will spend our sunset
	 years telling our children and our children's children what
	 it was once like in the United States where men were free."

			-- President Ronald Reagan

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