Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758748AbXITGni (ORCPT ); Thu, 20 Sep 2007 02:43:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752972AbXITGnc (ORCPT ); Thu, 20 Sep 2007 02:43:32 -0400 Received: from smtp1.Vir.com ([199.202.113.40]:35731 "EHLO smtp1.vir.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750862AbXITGnb (ORCPT ); Thu, 20 Sep 2007 02:43:31 -0400 Message-ID: <46F21692.4020607@soo.com> Date: Thu, 20 Sep 2007 02:43:30 -0400 From: ben soo Reply-To: lnx-kern@soo.com User-Agent: Thunderbird 1.5.0.9 (X11/20070111) MIME-Version: 1.0 To: Kernel Mailing list Subject: Re: PROBLEM: Network sky2 Module References: <46E2BC6A.4070800@gmx.de> <46EF4DE1.4000707@soo.com> <46EFE09B.6090901@tmr.com> <20070918080525.7a49d110@freepuppy.rosehill.hemminger.net> In-Reply-To: <20070918080525.7a49d110@freepuppy.rosehill.hemminger.net> Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1371 Lines: 35 >> ben soo wrote: [...] >>> This last might be an artifact caused by the firewall, i dunno. [...] > Bill Davidsen wrote: >> Yes, I have found that I get far less problem in this area leaving the >> MTU at 1500, then putting a larger MTU (usually 9000) into the routing >> table for segments, or even just machines, where I know there is direct >> connectivity. [...] Stephen Hemminger wrote: > If you want to use Jumbo frames, you need to have routers and firewalls > that correctly handle ICMP and do path MTU discovery. If you have bridges > or firewalls that aren't Jumbo aware on both interfaces, then there will > be long timeouts retries for each connection. If you have busted routers > and firewalls that swallow ICMP then PMTU won't work well either. i turned off the motherboard Marvell Gbit devices and installed a Realtek 8169 card, all the while keeping to kernel version 2.6.23-rc6, and saw all the network problems go away. Must mean it was a sky2 driver bug. Am currently running 2.6.23-rc7 on the affected server and the rc7 sky2 driver is holding up fine so far. thank you! b - 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/