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Subject: Re: [RFC PATCH 1/2] perf_events: add support for per-cpu
 per-cgroup monitoring (v2)
From: Peter Zijlstra <peterz@infradead.org>
To: eranian@google.com
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
        davem@davemloft.net, fweisbec@gmail.com, perfmon2-devel@lists.sf.net,
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Date: Wed, 08 Sep 2010 15:52:47 +0200
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On Wed, 2010-09-08 at 15:30 +0200, Stephane Eranian wrote:
> +       } times[NR_CPUS] ____cacheline_aligned_in_smp;

That's fail! NR_CPUS can be like 4k for distro configs.

Use proper per-cpu allocations.