From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262877AbUB0N7I (ORCPT ); Fri, 27 Feb 2004 08:59:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262878AbUB0N7I (ORCPT ); Fri, 27 Feb 2004 08:59:08 -0500 Received: from anchor-post-30.mail.demon.net ([194.217.242.88]:56075 "EHLO anchor-post-30.mail.demon.net") by vger.kernel.org with ESMTP id S262877AbUB0N7B (ORCPT ); Fri, 27 Feb 2004 08:59:01 -0500 Message-ID: <403F4D24.6040802@dcrdev.demon.co.uk> Date: Fri, 27 Feb 2004 13:59:00 +0000 From: Dan Creswell User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: en, en-us MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Zwane Mwaikambo Subject: Re: Hard locks under high interrupt load? References: <403F2237.6080505@dcrdev.demon.co.uk> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This box is running Fedora Core 1 and so, yes, it's running a userspace balance daemon (Redhat's). I'll try out the noirqbalance option and get back to the list on that one. Zwane Mwaikambo wrote: >On Fri, 27 Feb 2004, Dan Creswell wrote: > > > >>I'm having zero success in getting 2.6.3 stable under interrupt load. I >>can kill my machine in a variety of fashions all of which appear, to my >>naive eye, related to interrupt load: >> >>(1) LAN traffic via E1000 card (X is not running) >>(2) Running X for more than a few minutes - starting up a couple of >>applications whilst performing some disk-based activity (such as a >>compile) usually seems to do the trick. >> >>(2) is worth a little more examination. I have an NVIDIA card (I can >>hear you all groan) *but* I get the same results with the XFree driver >>*or* the proprietary NVIDIA driver. >> >>Disabling IO-APIC usage seems to resolve the problem. >> >> > >Does the 'noirqbalance' kernel parameter also serve as a workaround? Are >you using any userspace irq balancers? > > > >>Machine is a dual Xeon, Tyan S2665 (E7505 chipset) with an MPT-Fusion >>SCSI controller. >> >>2.4.26-pre1 and various other 2.4 kernels give me no problems at all. I >>really want to switch my machines over to 2.6 but I can't whilst this >>problem persists. >> >> > > >