From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Oester Subject: Re: [e1000 debug] KERNEL: assertion (!sk_forward_alloc) failed... Date: Wed, 29 Mar 2006 20:25:50 -0800 Message-ID: <20060330042550.GA13183@linuxace.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: nipsy@bitgnome.net, jrlundgren@gmail.com, cat@zip.com.au, djani22@dynamicweb.hu, yoseph.basri@gmail.com, bb@kernelpanic.ru, mykleb@no.ibm.com, olel@ans.pl, michal@feix.cz, chris@scorpion.nl, netdev@vger.kernel.org, Jesse Brandeburg , davem@davemloft.net, E1000-devel@lists.sourceforge.net Return-path: To: "Brandeburg, Jesse" Content-Disposition: inline In-Reply-To: Sender: e1000-devel-admin@lists.sourceforge.net Errors-To: e1000-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: List-Id: netdev.vger.kernel.org On Wed, Mar 29, 2006 at 06:53:57PM -0800, Brandeburg, Jesse wrote: > Hi all, I've identified you as people who have at some point in the past > emailed one of the Linux lists with problems with e1000 and > sk_forward_alloc. It seems to be fairly widespread, but only seems to > have appeared with recent kernel changes (after 2.6.12...) > > What I need from you is a reproducible test, and some information. I > have never been able to reproduce this, and I'm trying to isolate the > problem a bit. What motherboards are you using? What seems to cause > this problem? Are you all using iptables? Are you all routing? From > the reports I assume none of you are using an 82571/2/3 (pci express) Unfortunately it happens randomly, so I have no reproducible test. Dell 1850s and 2850s here, no iptables, routing, or pci express. lspci reports: 82541GI/PI Gigabit Ethernet Controller (rev 05) > As far as I know e1000 has the same requirement as tg3 and some others > where we have to modify the header of the skb in the case of transmits > using TSO. I don't see anywhere else that the driver modifies the skb. > Tomorrow I'll generate a patch to try a more paranoid copying of the > skb, I hope some of you can test. I'll certainly try it as long as it doesn't blow things up :) Phil ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642