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

Wed Jan 4 00:05:33 UTC 2006
Jim Perrin <jperrin at gmail.com>

> ...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