参照元

説明

参考

実装

config DEBUG_SPINLOCK
	bool "Spinlock and rw-lock debugging: basic checks"
	depends on DEBUG_KERNEL
	help
	  Say Y here and build SMP to catch missing spinlock initialization
	  and certain other kinds of spinlock errors commonly made.  This is
	  best used in conjunction with the NMI watchdog so that spinlock
	  deadlocks are also debuggable.

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