Re: [XenPPC] [PATCH] Flush the ERAT early for secondary CPUs

[Jimi Xenidis <jimix@xxxxxxxxxxxxxx>]

On Nov 9, 2006, at 4:35 PM, Amos Waterland wrote:

> Flush the ERAT very early on secondary processors.
>
> Because Jimi has expressed skepticism about the need to do this, we
> provide the following empirical and statistical arguments.
I have personally experienced this issue myself, since using the  
patch I have _not_.
I'm excepting the patch as a "FW workaround" and simply as yet  
another thing we need to reset on the chip.
Having said that, and the evidence of experienced stability, I would  
like to explore the possibility that this is indeed some ERAT  
pollution issue.
I don't know enough about Low Level FW (LLFW) not the POR cycle on  
the secondary processors, but I'd like to know more :) any insight  
out there?
-JX


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