linux-stable/clearing-warn-once.rst at master - linux-stable - MyRedstone

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Alex Shi 71fc2eb8b4 doc/zh_CN: add clearing-warn-once Chinese version

and link it into admin-guide.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200713115807.56362-2-alex.shi@linux.alibaba.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

2020-07-23 14:47:53 -06:00

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 清除 WARN_ONCE
 --------------
 WARN_ONCE / WARN_ON_ONCE / printk_once 仅仅打印一次消息.
 echo 1 > /sys/kernel/debug/clear_warn_once
 可以清除这种状态并且再次允许打印一次告警信息，这对于运行测试集后重现问题
 很有用。