From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Mr. Berkley Shands" Subject: forcedeth lockup in 2.6.21.5 and 2.6.22-rc6 Date: Tue, 26 Jun 2007 09:45:47 -0500 Message-ID: <4681269B.8090208@exegy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT To: Net Dev Return-path: Received: from [209.83.156.2] ([209.83.156.2]:2682 "EHLO service.eng.exegy.net" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1750827AbXFZOpu convert rfc822-to-8bit (ORCPT ); Tue, 26 Jun 2007 10:45:50 -0400 Received: from HANAFORD.eng.exegy.net (hanaford.eng.exegy.net [10.19.1.4]) by service.eng.exegy.net (8.13.1/8.13.1) with ESMTP id l5QEjmxH020670 for ; Tue, 26 Jun 2007 09:45:48 -0500 Content-class: urn:content-classes:message Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org With Centos-5.0/Redhat 5.0 on multiple motherboards (Tyan 2995/ SuperMicro H8DCE) The forcedeth network driver locks up under heavy NFS traffic (32KB frames) such as linking shared libraries. It either gives a register dump on a lock up in the transmit side, or loops complaining about eth0: too many iterations (6) in nv_nic_irq The system is hung. I cannot get to /var/log/messages, and only dmesg gives information. "service network restart" or even reloading the forcedeth.ko module does not restore the link. The only fix is "reboot -f". These machines are 4GB or 8GB opteron workstations. There is no problem when using 2.6.20. The error counts reported by ifconfig usually show framing errors, sometimes > 10 digits worth concurrent with this issue (after being up 5 minutes). I can reproduce this 100% of the time with 2.6.21.5 and 2.6.22-rc6. Any clues on what to try next? berkley -- // E. F. Berkley Shands, MSc// ** Exegy Inc.** 349 Marshall Road, Suite 100 St. Louis , MO 63119 Direct: (314) 218-3600 X450 Cell: (314) 303-2546 Office: (314) 218-3600 Fax: (314) 218-3601 The Usual Disclaimer follows... This e-mail and any documents accompanying it may contain legally privileged and/or confidential information belonging to Exegy, Inc. Such information may be protected from disclosure by law. The information is intended for use by only the addressee. If you are not the intended recipient, you are hereby notified that any disclosure or use of the information is strictly prohibited. If you have received this e-mail in error, please immediately contact the sender by e-mail or phone regarding instructions for return or destruction and do not use or disclose the content to others.