From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932276AbWAIMLe (ORCPT ); Mon, 9 Jan 2006 07:11:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932287AbWAIMLd (ORCPT ); Mon, 9 Jan 2006 07:11:33 -0500 Received: from smtp.osdl.org ([65.172.181.4]:17375 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S932275AbWAIMLc (ORCPT ); Mon, 9 Jan 2006 07:11:32 -0500 Date: Mon, 9 Jan 2006 04:11:14 -0800 From: Andrew Morton To: Folkert van Heusden Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [2.6.15] running tcpdump on 3c905b causes freeze (reproducable) Message-Id: <20060109041114.6e797a9b.akpm@osdl.org> In-Reply-To: <20060108114305.GA32425@vanheusden.com> References: <20060108114305.GA32425@vanheusden.com> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Folkert van Heusden wrote: > > My system freezes (crashes) when I run tcpdump on the interface > connected to a 3c905b card. Works for me with a 3c980-TX. I can dig out a 905b. Please send the exact commands which you're using to demonstrate this - sufficient info for me to get as close as possible to what you're doing. Have you tried enabling the NMI watchdog? Enable CONFIG_X86_LOCAL_APIC and boot with `nmi_watchdog=1' on the command line, make sure that the NMI line of /proc/interrupts is incrementing.