Re: [PATCH v2] oprofile, x86: Move memory allocation for ppro outof per cpu

[Peter Zijlstra]

On Mon, 2011-08-01 at 09:07 +0200, Robert Richter wrote:
> Can you please describe the root problem more precisely. Why can't you
> run it on -rt? What is broken? 

Because the allocators don't work from atomic context anymore. Now -rt
doesn't have a lot of real atomic contexts left so its usually not much
of a problem, but CPU_STARTING and actual IPIs are of course still
atomic.



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