TCP info spamming the logs and dmesg
Andre Oppermann
andre at freebsd.org
Fri Aug 17 02:07:34 PDT 2007
Mike Jakubik wrote:
> Eygene Ryabinkin wrote:
>> Andre, good day.
>>
>> Thu, Aug 16, 2007 at 08:34:05PM +0400, Eygene Ryabinkin wrote:
>>
>>> Thu, Aug 16, 2007 at 11:14:08AM -0400, Mike Jakubik wrote:
>>>
>>>> Is there any way to disable these, or have them log to a separate log?
>>>>
>>
>> I had seen about four such questions for the last two weeks, so maybe
>> it is time to patch tcp(4) manpage? The following is the very rough
>> patch for it:
>> --- tcp.4.orig 2007-08-16 20:35:06.000000000 +0400
>> +++ tcp.4 2007-08-16 20:37:33.000000000 +0400
>> @@ -259,6 +259,11 @@
>> Maximum
>> .Tn TCP
>> receive window.
>> +.It Va log_debug
>> +Enable (1) or disable (0)
>> +.Tn TCP
>> +stack debugging messages.
>> +Default is 1, i.e., the logging is enabled.
>> .It Va log_in_vain
>> Log any connection attempts to ports where there is not a socket
>> accepting connections.
>>
>
>
> That sounds like a good idea, perhaps it would also be a good idea to
> set the default to 0?
Yes, that is planned for the release together with all the
other performance affecting debugging features in the kernel
(WITNESS, INVARIANTS, etc).
I have updates to the tcp.4 and syncache.4 manpage in the wings
to document all changes and new sysctls.
--
Andre
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