From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: Problems with sky2 driver. Date: Mon, 24 Jul 2006 11:45:33 -0700 Message-ID: <20060724114533.2c61992b@dxpl.pdx.osdl.net> References: <20060724133829.49bf7979@akemi> <20060724105303.2c4d529f@localhost.localdomain> <20060724143839.56bfebdb@akemi> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.osdl.org ([65.172.181.4]:43744 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751417AbWGXSp1 (ORCPT ); Mon, 24 Jul 2006 14:45:27 -0400 To: Todd Showalter , netdev@vger.kernel.org In-Reply-To: <20060724143839.56bfebdb@akemi> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, 24 Jul 2006 14:38:39 -0400 Todd Showalter wrote: > On Mon, 24 Jul 2006 10:53:03 -0700, Stephen Hemminger > wrote: > > > There is a receive problem that shows up under load, that is fixed > > in the latest version (2.6.18 git), the patch is queued for the stable > > tree as well. > > I have hand-patched this in my 2.6.17.6 kernel. It seems better > (no hard wedge yet), but there are still definitely problems. > > The most obvious place is in firefox; for example, the front page > of slashdot half-renders (all the borders, no stories) and then sits > "loading" for eternity. Ditto the online package database at > gentoo.org. I'm seeing similar behavior with other websites as well. > It's consistant, too; I haven't been able to view the slashdot front > page since booting a 2.6.17 kernel. I suspect that probably isn't a sky2 driver problem. Does it go away if you turn of TCP window scaling: sysctl -w net.ipv4.tcp_window_scaling=0 If so, you probably have a middlebox in your path that is not correctly handling TCP window scaling. OpenBSD seems to be particularly bad. > > If I boot with the 2.6.16.9 kernel, I don't seem to get that > problem until the network actually hangs. > > Todd. > > -- > Todd Showalter > Silverbirch Studios -- Stephen Hemminger "And in the Packet there writ down that doome"