Re: Not to suppress NET kernel messages

Re: Not to suppress NET kernel messages

[Randy.Dunlap]

On Sun, 22 Aug 2004 05:10:36 +0200 Josan Kadett wrote:

| I think the messages are rate limited by some code in network subsytem that
| disallows a message from being sent to console for more than once. I am
| trying to add some source debugging functions with printk, and I just wish
| to disable this protection. 

Yes, net/core/utils.c, net_ratelimit() function is used to determine
if messages should be printed or suppressed.  It returns 1 if the
message should be printed, 0 to suppress a message.  Usage is like this:

	if (net_ratelimit())	/* print if non-0 */
		printk(KERN_DEBUG "printing some message\n");

If you want to print all messages (!) and you aren't worried about
DoS or overflowing logs etc., just change the net_ratelimit() function
to return 1 always... and stand back.  Warning, caveat emptor, user beware,
etc.  Void where prohibited.

--
~Randy

Not to suppress NET kernel messages

[Josan Kadett]

I think the messages are rate limited by some code in network subsytem that
disallows a message from being sent to console for more than once. I am
trying to add some source debugging functions with printk, and I just wish
to disable this protection.