Messages in this thread | | | Date | Thu, 2 Feb 2006 12:12:42 +0100 (MET) | From | Niklas Edmundsson <> | Subject | RE: powernow-k8: out of sync on Athlon64 x2 3800+ |
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On Wed, 1 Feb 2006, shin, jacob wrote:
> Hello, > > I don't think this is a BIOS issue, but a kernel bug in the i386 > tree. I believe this was recently discussed and hopefully fixed by > Andi Kleen in the kernel mailing list: > > http://lkml.org/lkml/2006/1/9/442
My symptoms are identical, so it's probably that bug. I guess my bug report through FSC's official support channel will bounce eventually then ;)
> This is a critical bug especially for systems running AMD Dual-Core > Processors on i386 kernel configuration w/ powernow-k8. > > The reason for "powernow-k8 - out of sync" errors is because the > cpufreq driver is not aware [or has the wrong idea] about which CPUs > are tied together, because cpu_core_id and phy_proc_id data is > wrong. > > Now this is fairly harmless as Mark mentioned, but only on single > socket Dual Core systems.
It doesn't crash my machine, but it also doesn't seem capable to really lower the clock frequency...
> I was wondering if anyone has already tested Andi's patch, if it > successfully solves this problem, and if the patch has made it into > the git yet.
I can give the patch a try if you feel that would help, albeit I prefer not rebooting my workstation ;)
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