Documentation / clearing-warn-once.txt

Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

	
	WARN_ONCE / WARN_ON_ONCE only print a warning once.
	
	echo 1 > /sys/kernel/debug/clear_warn_once
	
	clears the state and allows the warnings to print once again.
	This can be useful after test suite runs to reproduce problems.

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