From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 11 Jan 2001 19:29:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 11 Jan 2001 19:29:11 -0500 Received: from e56090.upc-e.chello.nl ([213.93.56.90]:30981 "EHLO unternet.org") by vger.kernel.org with ESMTP id ; Thu, 11 Jan 2001 19:28:58 -0500 Date: Fri, 12 Jan 2001 01:28:39 +0100 From: Frank de Lange To: Jeff Garzik Cc: linux-kernel@vger.kernel.org Subject: Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related? Message-ID: <20010112012839.A11091@unternet.org> In-Reply-To: <20010110223015.B18085@unternet.org> <3A5D9D87.8A868F6A@uow.edu.au> <20010111201819.B3269@unternet.org> <3A5E0849.EB428D70@mandrakesoft.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3A5E0849.EB428D70@mandrakesoft.com>; from jgarzik@mandrakesoft.com on Thu, Jan 11, 2001 at 02:23:53PM -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 11, 2001 at 02:23:53PM -0500, Jeff Garzik wrote: > Just out of curiosity, if you boot a Linux 2.4.0 kernel with the > "noapic" command line option, does behavior improve? For the curious, here's a summary of some tests I did: apic, 2 cpu's, no smp affinity -> network hangs under load apic, maxcpus=1, no smp affinity -> network hangs under load apic, 2 cpu's, smp affinity for all irq's on CPU1 -> network hangs under load noapic, 2 cpu's, no smp affinity -> NO HANG, WORKSFORME Quick and dirty conclusion: as soon as the apic comes in to play, things get messy... ps. load == 2 simultaneous nfs cp -rd sessions and streaming esd audio over the network Cheers//Frank -- WWWWW _______________________ ## o o\ / Frank de Lange \ }# \| / \ ##---# _/ \ #### \ +31-320-252965 / \ frank@unternet.org / ------------------------- [ "Omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est." ] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/