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Subject: Re: [PATCH 2/2] Add a thread cpu time implementation to vDSO
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Arun Sharma <asharma@fb.com>
Cc: linux-kernel@vger.kernel.org, Kumar Sundararajan <kumar@fb.com>,
        Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>,
        Thomas Gleixner <tglx@linutronix.de>,
        john stultz <johnstul@us.ibm.com>, Andy Lutomirski <luto@MIT.EDU>
Date: Mon, 12 Dec 2011 21:13:11 +0100
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Le lundi 12 décembre 2011 à 11:36 -0800, Arun Sharma a écrit :
> From: Kumar Sundararajan <kumar@fb.com>
> 

...

> +
> +struct vcpu_data {
> +	struct vpercpu_data vpercpu[NR_CPUS];
> +	unsigned int tsc_khz;
> +	unsigned int tsc_unstable;
> +};

Thats a showstopper.

Try to compile the thing with NR_CPUS=4096 ?