Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261159AbVA0UCk (ORCPT ); Thu, 27 Jan 2005 15:02:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261155AbVA0UCZ (ORCPT ); Thu, 27 Jan 2005 15:02:25 -0500 Received: from acomp.externet.hu ([212.40.96.68]:11712 "HELO www.acomp.hu") by vger.kernel.org with SMTP id S261153AbVA0UBC (ORCPT ); Thu, 27 Jan 2005 15:01:02 -0500 Date: Thu, 27 Jan 2005 21:00:56 +0100 From: Janos Farkas To: David Brownell Cc: David Ford , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Subject: Re: 2.6.11-rc2 TCP ignores PMTU ICMP (Re: Linux 2.6.11-rc2) Message-ID: Mail-Followup-To: David Brownell , David Ford , linux-kernel@vger.kernel.org, netdev@oss.sgi.com References: <200501232251.42394.david-b@pacbell.net> <200501251054.37053.david-b@pacbell.net> <200501271128.48411.david-b@pacbell.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200501271128.48411.david-b@pacbell.net> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1320 Lines: 27 On 2005-01-27 at 11:28:48, David Brownell wrote: > > Indeed, I had to shuffle my machines around a bit to get a proof that > > something is broken, but now I can confirm the above with a connection > > to cvs.sourceforge.net: > > Thanks for confirming it wasn't just me ... I confess I'm a bit > surprised more folk haven't reported this yet! > > Your symptoms are exactly like those I saw, just with a different > mission-critical application: CVS, not SMTP. Did you happen to > notice whether CVS pulls worked, when pushes (like this) failed? I'm familiar with symptoms arising from various stochastic/assymetric networking problems with larger frames, I had cable :) This was a pull (update), BTW, CVS can send more data in this situation too. But it turned painfully obvious when trying to send mail to LK via SMTP. Oh, but while plain rc2 may have this problem, this particular endpoint had rc2-bk3 running. I also chose to set the ethernet MTU to 1492 as an easy workaround... -- Janos | romfs is at http://romfs.sourceforge.net/ | Don't talk about silence. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/