Re: [stable] [113/197] x86, cacheinfo: Calculate L3 indices

From: H. Peter Anvin
Date: Wed May 12 2010 - 19:49:28 EST


On 05/12/2010 04:32 PM, H. Peter Anvin wrote:
> On 05/12/2010 04:19 PM, Greg KH wrote:
>>>
>>> So if K8_NB has failed initializing for some reason, we never go near
>>> the pci devs and the node_to_k8_nb_misc() calls since we effectively
>>> disable the L3 functionality.
>>>
>>> Thus the NULL pointer checks you remove in the patch below are
>>> superfluous, I agree, and I have already removed those in my tree along
>>> with the other improvements/fixes I'm working on right now.
>>
>> So, was there ever a patch applied that fixed the bug that Jiri found in
>> the stable kernels with this original patch that I could apply?
>>
>
> Sounds like this patch in -tip should be promoted to mainline/stable...
> could the AMD people please confirm?
>

Specifically, "waiting to hit mainline" is not an option since they are
currently queued for .35, but we need a minimal fix in .34 -- this is
the "stable backport". If this "stable backport" is simply a subset of
the patch series then let me know which ones should be moved to urgent
and sent to Linus immediately. I obviously don't have access to a setup
which can replicate this particular problem.

-hpa
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