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From: Simon Kirby <sim@netnation.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org, linux-net@vger.kernel.org,
	davem@redhat.com
Subject: Re: Longstanding networking / SMP issue? (duplextest)
Date: Thu, 20 Feb 2003 01:20:43 -0800	[thread overview]
Message-ID: <20030220092043.GA25527@netnation.com> (raw)
In-Reply-To: <p73r8a3xub5.fsf@amdsimf.suse.de>

On Thu, Feb 20, 2003 at 08:52:46AM +0100, Andi Kleen wrote:

> That's probably because of the lazy ICMP socket locking used for the
> ICMP socket. When an ICMP is already in process the next ICMP triggered
> from a softirq (e.g. ECHO-REQUEST) is dropped  
> (see net/ipv4/icmp_xmit_lock_bh())

Hmm...and this is considered desired behavior?  It seems like an odd way
of handling packets intended to test latency and reliability. :)

This is most likely the cause, but I will test tomorrow to confirm.

Thanks,

Simon-

[        Simon Kirby        ][        Network Operations        ]
[     sim@netnation.com     ][     NetNation Communications     ]
[  Opinions expressed are not necessarily those of my employer. ]

  parent reply	other threads:[~2003-02-20  9:10 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20030219174757.GA5373@netnation.com.suse.lists.linux.kernel>
2003-02-20  7:52 ` Longstanding networking / SMP issue? (duplextest) Andi Kleen
2003-02-20  7:38   ` David S. Miller
2003-02-20  9:20   ` Simon Kirby [this message]
2003-02-20  9:34     ` Andi Kleen
2003-02-20 10:12       ` dada1
2003-02-20 10:54         ` Andi Kleen
2003-02-20 11:03           ` dada1
2003-02-21  4:24       ` David S. Miller
2003-02-21  7:27         ` Andi Kleen
2003-02-21  9:43           ` David S. Miller
2003-02-21 10:22             ` Andi Kleen
2003-02-21 10:11               ` David S. Miller
2003-02-21 10:45                 ` Andi Kleen
2003-02-23  9:12                   ` David S. Miller
2003-02-23 10:02                     ` Christoph Hellwig
2003-02-23  9:55                       ` David S. Miller
2003-02-23 10:30                         ` Andi Kleen
2003-02-23 10:23                           ` David S. Miller
2003-02-23 10:37                           ` Christoph Hellwig
2003-02-23  9:58                       ` David S. Miller
2003-02-21 15:15       ` Bill Davidsen
     [not found] <20030219203342.P28230@shell.cyberus.ca>
     [not found] ` <20030220020527.GA12748@netnation.com>
2003-02-20 12:39   ` jamal
2003-02-20 12:43     ` jamal
2003-02-19 17:47 Simon Kirby
2003-02-19 21:17 ` David S. Miller

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