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From: Vlad Yasevich <vladislav.yasevich@hp.com>
To: David Stevens <dlstevens@us.ibm.com>
Cc: Adrian Bunk <bunk@kernel.org>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	netdev-owner@vger.kernel.org
Subject: Re: [2.6 patch] unexport icmpmsg_statistics
Date: Wed, 24 Oct 2007 16:24:35 -0400	[thread overview]
Message-ID: <471FAA03.9090003@hp.com> (raw)
In-Reply-To: <OF4D25AE59.ADF06793-ON8825737E.006DD213-8825737E.006EC6C3@us.ibm.com>

David Stevens wrote:
> I took a look at the DCCP references, and I think they're just
> incrementing the wrong MIB variable -- e.g., it's incrementing
> ICMP_MIB_INERRORS when the skb length is less than the
> header indicates. That's not an ICMP_MIB_INERRORS error,
> that's an IPSTATS_MIB_INHDRERRORS error. ICMP_MIB_INERRORS
> is when you receive an ICMP error packet; an IP header error
> is something else entirely.
> 
> That's followed by a failed lookup incrementing ICMP_MIB_INERRORS
> which should be an unknown port error in the transport MIB (assuming
> it has one-- it's not an ICMP error; could be an IP error, if the address
> isn't local, rather than unknown port).
> 
> In SCTP, it appears to have similar problems. SCTP errors are not
> ICMP errors, though it perhaps should be calling icmp_send() to
> send one to the offending host for some of the cases.
> 
> I haven't seen any ICMP-relevant stats correctly referenced in
> these yet.
> 
> I don't want to patch them directly, since I can't easily test them;
> if someone who works with DCCP and SCTP would like to, I'd
> be happy to review. Any volunteers?

I'll take a look at the SCTP ones.  Thanks for review.

-vlad

> 
>                                                 +-DLS
> 
> -
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  reply	other threads:[~2007-10-24 20:25 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-24 16:24 [2.6 patch] unexport icmpmsg_statistics Adrian Bunk
2007-10-24 19:07 ` David Stevens
2007-10-24 19:14   ` Adrian Bunk
2007-10-24 19:29     ` David Stevens
2007-10-24 20:11       ` David Stevens
2007-10-24 20:24         ` Vlad Yasevich [this message]
2007-10-24 20:43           ` David Stevens
2007-10-24 20:54             ` Vlad Yasevich
2007-10-24 21:00             ` Vlad Yasevich
2007-10-26 11:06             ` David Miller
2007-10-24 20:52         ` Vlad Yasevich

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