Re: [discuss] Re: [PATCH] x86-64: Fix bad assumption that dualcore cpus have synced TSCs

[Daniel Jacobowitz]

On Tue, Sep 20, 2005 at 11:59:45AM -0700, john stultz wrote:
> So, bugzilla.kernel.org has (temporarily at least) lost the reports from
> yesterday, but from the email i got, folks using my TSC consistency
> check that I posted were seeing what appears to be unsynched TSCs on
> dualcore AMD systems.
> 
> Personally I suspect that the powernow driver is putting the cores
> independently into low power sleep and the TSCs are being independently
> halted, causing them to become unsynchronized.
> 
> Do you still feel there is some other issue here? Any ideas for shaking
> out whatever else might in play?

FYI, at least I have reproduced this without powernow loaded.

-- 
Daniel Jacobowitz
CodeSourcery, LLC
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