Applied to -tip as x86/unify-mce.

Thanks!

	-hpa


Andi Kleen wrote:
quoted text
> This patchkit uses the 64bit machine check code which is better in many
> ways on 32bit x86 too. This is also the basis for some future machine
> check work.
> 
> The 64bit machine check code is in many ways much better than 
> the 32bit machine check code: it is more specification compliant,
> is cleaner, only has a single code base versus one per CPU, 
> has better infrastructure for recovery, has a cleaner way to communicate
> with user space etc. etc.
> 
> It requires testing especially on older systems (on newer
> ones it should be already tested well in 64bit systems). 
> 
> The patchkit contains several parts:
> - It ports over a few needed quirks (for older Intel and older
> AMD CPUs) to the 64bit kernel.
> - It changes the 64bit code to be 32bit clean in its data structures
> (mostly just unsigned long -> u64 where needed) 
> - It drops some unused functionality that cannot be easily implemented on 32bit
> and didn't seem worth ifdefing
> 
> Tested by doing some software level error injection on a few
> different machines
> 
> I request this code is merged into the appropiate tree for linux-next
> for wider testing. It's not .27 ready, but hopefully .28, but it requires
> wider exposure now.
> 
> v2: Fix compilation problems noted by hpa in some configurations
>     Fix strict_strtoul() conversion
> 
> -Andi 
> 
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