Re: Re-implement MCE log ring buffer as per-CPU ring buffer

[Andi Kleen]

Ingo Molnar wrote:
> * Robert Richter <robert.richter@xxxxxxx> wrote:
>
> > On 22.04.09 11:22:59, Ingo Molnar wrote:
> > > * Huang Ying <ying.huang@xxxxxxxxx> wrote:
> > >
> > > > Re-implement MCE log ring buffer as per-CPU ring buffer for better 
> > > > scalability. Basic design is as follow:
> > > Before changing anything substantial in the MCE code it would be 
> > > necessary to clean up and then unify the 32-bit and 64-bit side 
> > > of the MCE code first. (Which essentially means extending the 
> > > 64-bit-only code to 32-bit)
> > You may also want to consider to use the in-kernel ring_buffer api 
> > (include/linux/ring_buffer.h).
>
> Yeah. I'd have suggested that once cleanups and unification is done 
> (which is still a long way out :-).

Hi Ingo,

If you can tell us clearly how to do this I can work on it. e.g.
if the scheme laid out in my earlier mail is acceptable and
I can port these patches to mce2 I mentioned and that can be hopefully
all done quickly.

However I don't agree with you stalling important hardware support
and bug fix code  for a long time just because you have something
half baked in tree and I hope you won't pursue such a policy.

-Andi

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