netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Just Marc <marc@corky.net>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org
Subject: Re: Disabling "TCP Treason uncloaked"
Date: Wed, 03 May 2006 14:11:06 +0100	[thread overview]
Message-ID: <4458ABEA.8040000@corky.net> (raw)
In-Reply-To: <20060503115653.GA1353@gondor.apana.org.au>

Hi
> On Wed, May 03, 2006 at 01:49:05PM +0100, Just Marc wrote:
>   
>> You're right, actually this box serves http/ftp file transfers only, 
>> it's a mirror with a large amount of downloads a day.
>>     
>
> That's interesting.  The RX bug that I fixed earlier would usually
> manifest itself under exactly these conditions.  Alas you're running
> a fixed kernel.
>
>   
>> I gave it another look, many of the prints are repeat prints for the 
>> same remote IPs,
>>     
>
> Can you take a tcpdump of the TCP sessions involving those IPs and
> then show me the sections that occur when those messages are triggered?
>
>   
OK, I'll try that.
>> I agree, however, I think it's pretty good to allow an admin to toggle 
>> it off completely.  Maybe that's all we need, really.
>>     
>
> The question is always what you want to be off and what to leave on.
> After all, you can turn off all printk's to the console through /proc.
> If you also tell klogd to ignore them then you won't see anything at
> all (unless you run dmesg).
>   
The problem is that it's really BAD to suppress all messages, there may 
be critical ones.  In my opinion while the treason uncloaked message can 
help uncover bugs it is mostly redundant on a day to day usage for 
probably 99% of the scenarios.

Marc

      parent reply	other threads:[~2006-05-03 12:12 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-02 16:19 Disabling "TCP Treason uncloaked" Just Marc
2006-05-02 16:02 ` Andi Kleen
2006-05-03  4:44   ` Just Marc
2006-05-03  6:32   ` David S. Miller
2006-05-03  6:52     ` Andi Kleen
2006-05-03  8:06     ` Just Marc
2006-05-02 23:00 ` Herbert Xu
2006-05-03  4:10   ` Auke Kok
2006-05-03  4:46   ` Just Marc
2006-05-03  7:05     ` Herbert Xu
2006-05-03 11:47       ` Ingo Oeser
2006-05-03 12:21         ` Herbert Xu
2006-05-03 13:08         ` Just Marc
2006-05-03 12:11           ` Herbert Xu
2006-05-03 13:25             ` Just Marc
2006-05-03 12:49       ` Just Marc
2006-05-03 11:56         ` Herbert Xu
2006-05-03 12:15           ` Alexey Toptygin
2006-05-03 13:19             ` Herbert Xu
2006-05-03 13:11           ` Just Marc [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4458ABEA.8040000@corky.net \
    --to=marc@corky.net \
    --cc=herbert@gondor.apana.org.au \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).