Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 27 Mar 2001 18:42:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 27 Mar 2001 18:42:14 -0500 Received: from isis.its.uow.edu.au ([130.130.68.21]:44730 "EHLO isis.its.uow.edu.au") by vger.kernel.org with ESMTP id ; Tue, 27 Mar 2001 18:41:56 -0500 Message-ID: <3AC12580.F2F280C@uow.edu.au> Date: Wed, 28 Mar 2001 09:42:56 +1000 From: Andrew Morton X-Mailer: Mozilla 4.7 [en] (X11; I; Linux 2.4.3-pre3 i586) X-Accept-Language: en MIME-Version: 1.0 To: Clem Taylor CC: linux-kernel@vger.kernel.org Subject: Re: 2.4.2 SMP + 3c905C-TX + NETDEV WATCHDOG In-Reply-To: <3AC108AF.C5F4A862@chipwrights.com> 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 Clem Taylor wrote: > > Every few weeks, since switching to 2.4.2, I get a series of 'NETDEV > WATCHDOG' errors. When this happens the system becomes unusable (homes > are NFS mounted) and does not recover. A small number of packets do get > out when it's in this state, but not enough to be useful. I've tried an > ifconfig up/down, all that seems to help is a reboot. The 3c905C driver > is compiled into my kernel, so I can't reload it. The machine is a Dell > Precision 220 (only one processor installed). Irritating, isn't it? > Has anyone else seen this problem. Is their a way to reset the interface > without rebooting? Any ideas? No. A reboot is required. It is due to a problem in the APIC handling. There is a workaround in the 2.4.2-ac series which fixes it. It appears to not be in the 2.4.3 series. So for the while you'll have to either install a recent -ac kernel or boot with the `noapic' LILO option. - - 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/