From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King Subject: Re: 2.6.27.8 (+the idr fix) TCP Ack issue Date: Wed, 31 Dec 2008 17:10:16 +0000 Message-ID: <20081231171016.GA1901@flint.arm.linux.org.uk> References: <20081230195858.GA23530@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Netdev , Ben Hutchings To: Ilpo =?iso-8859-1?Q?J=E4rvinen?= Return-path: Received: from caramon.arm.linux.org.uk ([78.32.30.218]:41753 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756016AbYLaRKt (ORCPT ); Wed, 31 Dec 2008 12:10:49 -0500 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Wed, Dec 31, 2008 at 12:38:24PM +0200, Ilpo J=E4rvinen wrote: > If you have the dump still at handy, could you add couple of -v -v fo= r > tcpdump. It could be that the peer is using bogus seqnos in the > duplicate ACK but by default that's not visible for zero sized segs > (checked in tcp_validate_incoming in the 2.6.28.7 kernel). Is "seqno" another name for the IP ID field? --=20 Russell King