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SubjectRe: [PATCH -v5] x86: MCE: Re-implement MCE log ring buffer as per-CPU ring buffer
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On Mon, 2009-06-08 at 15:20 +0800, Ingo Molnar wrote:
> * Huang Ying <ying.huang@intel.com> wrote:
>
> > Re-implement MCE log ring buffer as per-CPU ring buffer for better
> > scalability.
>
> this should be done using the generic ring-buffer code - see
> include/linux/ring_buffer.h. Having a private implementation in
> architecture code is not really acceptable.

MCE log ring buffer need to be NMI-safe, while current generic
ring-buffer code is not NMI safe. Maybe we can use the generic
ring-buffer code after it goes NMI-safe. But for now, I think this patch
is better.

Best Regards,
Huang Ying




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