Re: [RFC PATCH 3/6] perf: Generalize some arch callchain code

[Peter Zijlstra]

On Thu, 2010-07-01 at 17:35 +0200, Frederic Weisbecker wrote:
> - Most archs use one callchain buffer per cpu, except x86 that needs
>   to deal with NMIs. Provide a default perf_callchain_buffer()
>   implementation that x86 overrides. 

sparc and power also have NMI like contexts.
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