linux-zen-server/Documentation/admin-guide/clearing-warn-once.rst

10 lines
275 B
ReStructuredText
Raw Normal View History

2023-08-30 17:53:23 +02:00
Clearing WARN_ONCE
------------------
WARN_ONCE / WARN_ON_ONCE / printk_once only emit a message 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.