Re: slab: start_cpu_timer/cache_reap CONFIG_HOTPLUG_CPU problems

From: Christoph Lameter
Date: Tue Feb 20 2007 - 17:15:01 EST

On Tue, 20 Feb 2007, Max Krasnyansky wrote:

> Ok. Sounds like disabling cache_reaper is a better option for now. Like you
> said
> it's unlikely that slabs will grow much if that cpu is not heavily used by the
> kernel.

Running for prolonged times without cache_reaper is no good.

What we are talking about here is to disable the cache_reaper during cpu
shutdown. The slab cpu shutdown will clean the per cpu caches anyways so
we really do not need the slab_reaper running during cpu shutdown.
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