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SubjectRe: [PATCH v9 2/3] trace,x86: add x86 irq vector tracepoints
On 02/18/2013 03:45 PM, Seiji Aguchi wrote:
>>> Not-yet-signed-off-by: Steven Rostedt <>
>>> ... so I was holding off on doing anything with it.
>> Heh, and I was waiting for comments from you before doing anything further with it ;-)
>> Email review deadlock!
> So, how do you plan to push ahead with this patch?
> <snip>
> I think I got all the cases, as NMIs causes the store/restore functions to be re-entrent without any locks.
> <snip>
> Steven,
> if you think you got all the cases, you can do more testing.
> What is your concern?
> I hope this patch will be included in 3.9.

What about the following:

> The base address of the IDT doesn't generally change... the one
> exception is when we do the funny NMI workaround.
> For that reason, I would be happier if we just restored the standard
> value instead of saving/restoring stuff.


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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