Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758166AbZDEIT6 (ORCPT ); Sun, 5 Apr 2009 04:19:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753029AbZDEITk (ORCPT ); Sun, 5 Apr 2009 04:19:40 -0400 Received: from 2605ds1-ynoe.1.fullrate.dk ([90.184.12.24]:41937 "EHLO shrek.krogh.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751654AbZDEITh (ORCPT ); Sun, 5 Apr 2009 04:19:37 -0400 Message-ID: <49D86997.6010304@krogh.cc> Date: Sun, 05 Apr 2009 10:19:35 +0200 From: Jesper Krogh User-Agent: Thunderbird 2.0.0.21 (X11/20090318) MIME-Version: 1.0 To: "netdev@vger.kernel.org" , Linux Kernel Mailing List , Joe Korty , Ayaz Abdulla Subject: eth0: too many iterations (16) in nv_nic_irq. Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1645 Lines: 42 I have a 2.6.29 kernel which fills up the "dmesg-buffer" with these: eth0: too many iterations (16) in nv_nic_irq. $ dmesg | grep -c "too many iterations" 1986 I have seen the commit below.. is the fix just to set the limit to 30 instead? or is there a "real bug" underneath? commit dccd547e2bf2c01a13c967ae03a705338394fad6 Author: Joe Korty Date: Wed Oct 29 14:22:16 2008 -0700 forcdeth: increase max_interrupt_work This eliminates the following often-generated warning from my 64 bit Opteron SMP test stand: eth0: too many iterations (6) in nv_nic_irq According to the web, the problem is that the forcedeth driver has a too-low value for max_interrupt_work. Grepping the kernel I see that forcedeth has the second lowest value of all ethernet drivers (ie, 6). Most are in the 20-40 range. So this patch increases this a bit, from 6 to 15 (at 15 forcedeth becomes the driver with third-lowest max_interrupt_work value). My test stand, which used to print out the above warnings repetitively whenever it was under heavy net load, no longer does so. Signed-off-by: Joe Korty Cc: Ayaz Abdulla Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik -- 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/