From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Subject: Re: e1000e "Detected Tx Unit Hang" Date: Fri, 18 Jul 2008 16:55:54 +0200 Message-ID: <200807181655.54760.sr@denx.de> References: <4866211E.6040704@embedded-sol.com> <200807140947.46733.sr@denx.de> <487B0B75.1070506@embedded-sol.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: "Brandeburg, Jesse" , netdev@vger.kernel.org To: Felix Radensky Return-path: Received: from moutng.kundenserver.de ([212.227.126.174]:52287 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751776AbYGRO4M (ORCPT ); Fri, 18 Jul 2008 10:56:12 -0400 In-Reply-To: <487B0B75.1070506@embedded-sol.com> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Hi Felix, On Monday 14 July 2008, Felix Radensky wrote: > >> The following command works always > >> > >> dd if=/dev/zero of=/mnt/test bs=512 count=2 > >> > >> and the following causes Tx unit hang > >> > >> dd if=/dev/zero of=/mnt/test bs=512 count=3 > >> > >> Stefan, are you aware of any PCIe related problems on Canyonlands ? > >> AMCC have compatibility chart on their site, which indicates that this > >> particular card (Intel PRO/1000 T Desktop Adapter) Iwas tested with > >> linux-2.6.25 kernel. I just tried this on my Canyonlands with the kernel.org 2.6.26 release: e1000e: Intel(R) PRO/1000 Network Driver - 0.3.3.3-k2 e1000e: Copyright (c) 1999-2008 Intel Corporation. e1000e 0001:81:00.0: enabling device (0006 -> 0007) eth0: (PCI Express:2.5GB/s:Width x1) 00:1b:21:04:a3:47 eth0: Intel(R) PRO/1000 Network Connection eth0: MAC: 1, PHY: 4, PBA No: d50854-003 ... -bash-3.2# uname -a Linux canyonlands 2.6.26 #2 Fri Jul 18 16:46:00 CEST 2008 ppc ppc ppc GNU/Linux -bash-3.2# dd if=/dev/zero of=/mnt/test bs=512 count=2 2+0 records in 2+0 records out 1024 bytes (1.0 kB) copied, 0.015222 s, 67.3 kB/s -bash-3.2# dd if=/dev/zero of=/mnt/test bs=512 count=3 3+0 records in 3+0 records out 1536 bytes (1.5 kB) copied, 0.014824 s, 104 kB/s -bash-3.2# dd if=/dev/zero of=/mnt/test bs=512 count=256 256+0 records in 256+0 records out 131072 bytes (131 kB) copied, 0.099793 s, 1.3 MB/s -bash-3.2# dmesg -c -bash-3.2# So no problems here. Rootfs NFS is mounted via e1000e of course. Did you try with kernel.org 2.6.26 too? If not, please do so. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@denx.de =====================================================================