Messages in this thread |  | | | Subject | Re: [PATCH v2] oprofile, x86: Move memory allocation for ppro out of per cpu | | From | Peter Zijlstra <> | | Date | Mon, 01 Aug 2011 14:37:11 +0200 |
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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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