Commit 2a1390c8 authored Jul 14, 2025 by Breno Leitao Committed by Jonathan Corbet Jul 17, 2025

docs: kernel: Clarify printk_ratelimit_burst reset behavior



Add clarification that the printk_ratelimit_burst window resets after
printk_ratelimit seconds have elapsed, allowing another burst of
messages to be sent. This helps users understand that the rate limiting
is not permanent but operates in periodic windows.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250714-docs_ratelimit-v1-1-51a6d9071f1a@debian.org

parent cae58415

Documentation/admin-guide/sysctl/kernel.rst

+2 −1

Original line number	Diff line number	Diff line
		@@ -1111,7 +1111,8 @@ printk_ratelimit_burst
		While long term we enforce one message per `printk_ratelimit`_
		seconds, we do allow a burst of messages to pass through.
		``printk_ratelimit_burst`` specifies the number of messages we can
		send before ratelimiting kicks in.
		send before ratelimiting kicks in. After `printk_ratelimit`_ seconds
		have elapsed, another burst of messages may be sent.

		The default value is 10 messages.