* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

quoted text
> +config RCU_CPU_STALL_DETECTOR
> +	bool "Check for stalled CPUs delaying RCU grace periods"
> +	depends on CLASSIC_RCU || TREE_RCU
> +	default n
> +	help
> +	  This option causes RCU to printk information on which
> +	  CPUs are delaying the current grace period, but only when
> +	  the grace period extends for excessive time periods.
> +
> +	  Say Y if you want RCU to perform such checks.
> +
> +	  Say N if you are unsure.

could you please send this bit separately, even if rcutree isnt finished 
yet? Seems like a quite useful debug feature.

	Ingo
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