Messages in this thread | | | Date | Wed, 21 Sep 2016 15:04:29 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH 0/2 v3] cpu hotplug: Preserve topology directory after soft remove event |
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On Wed, Sep 21, 2016 at 07:39:31AM -0400, Prarit Bhargava wrote: > The information in /sys/devices/system/cpu/cpuX/topology > directory is useful for userspace monitoring applications and in-tree > utilities like cpupower & turbostat. > > When down'ing a CPU the /sys/devices/system/cpu/cpuX/topology directory is > removed during the CPU_DEAD hotplug callback in the kernel. The problem > with this model is that the CPU has not been physically removed and the > data in the topology directory is still valid. IOW, the cpu is still > present but the kernel has removed the topology directory making it > very difficult to determine exactly where the cpu is located.
So I'm afraid I still don't understand what the problem here is.
And the commit message of 2/2 doesn't make it any clearer. Can you please give a concrete example what the problem is and what you're trying to achieve.
Thanks.
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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