Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache_reap

[Andi Kleen]

On Mon, Feb 15, 2010 at 05:15:35PM +1100, Nick Piggin wrote:
> On Thu, Feb 11, 2010 at 09:54:04PM +0100, Andi Kleen wrote:
> > 
> > cache_reap can run before the node is set up and then reference a NULL 
> > l3 list. Check for this explicitely and just continue. The node
> > will be eventually set up.
> 
> How, may I ask? cpuup_prepare in the hotplug notifier should always
> run before start_cpu_timer.

I'm not fully sure, but I have the oops to prove it :)

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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