Commit ca30ad85 authored by Oleksandr Natalenko's avatar Oleksandr Natalenko Committed by Jonathan Corbet
Browse files

docs: admin-guide: fix printk_ratelimit explanation 



The printk_ratelimit value accepts seconds, not jiffies (though it is
converted into jiffies internally). Update documentation to reflect
this.

Also, remove the statement about allowing 1 message in 5 seconds since
bursts up to 10 messages are allowed by default.

Finally, while we are here, mention default value for
printk_ratelimit_burst too.

Signed-off-by: default avatarOleksandr Natalenko <oleksandr@redhat.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent ea882f75

Documentation/admin-guide/sysctl/kernel.rst

+4 −2
Original line number Diff line number Diff line
@@ -831,8 +831,8 @@ printk_ratelimit: 
=================



Some warning messages are rate limited. printk_ratelimit specifies

the minimum length of time between these messages (in jiffies), by

default we allow one every 5 seconds.

the minimum length of time between these messages (in seconds).

The default value is 5 seconds.



A value of 0 will disable rate limiting.
@@ -845,6 +845,8 @@ 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.



The default value is 10 messages.





printk_devkmsg:

===============