Content - 5b1f5d547be12d965da254a83e6b9cb24272842d - a681e0e/Documentation/clearing-warn-once.txt

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https://github.com/torvalds/linux

02 December 2023, 22:23:51 UTC

Tip revision: b2cd1df66037e7c4697c7e40496bf7e4a5e16a2d authored by Linus Torvalds on 07 January 2018, 22:22:41 UTC
Linux 4.15-rc7

Tip revision: b2cd1df

clearing-warn-once.txt


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.