From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271188AbTHRCaH (ORCPT ); Sun, 17 Aug 2003 22:30:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271189AbTHRCaH (ORCPT ); Sun, 17 Aug 2003 22:30:07 -0400 Received: from holomorphy.com ([66.224.33.161]:50148 "EHLO holomorphy") by vger.kernel.org with ESMTP id S271188AbTHRCaE (ORCPT ); Sun, 17 Aug 2003 22:30:04 -0400 Date: Sun, 17 Aug 2003 19:31:07 -0700 From: William Lee Irwin III To: Andrew Morton Cc: Stefan Foerster , linux-kernel@vger.kernel.org Subject: Re: Very bad interactivity with 2.6.0 and SCSI disks (aic7xxx) Message-ID: <20030818023107.GU32488@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Andrew Morton , Stefan Foerster , linux-kernel@vger.kernel.org References: <20030818013243.GB21665@in-ws-001.cid-net.de> <20030817192103.798994d8.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030817192103.798994d8.akpm@osdl.org> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Stefan Foerster wrote: >> But as soon as I do a >> while true; do dd if=/dev/zero of=test bs=1024 count=1048576 ; rm test >> ; done >> on my SCSI disk, the system becomes completely unusuable after a few >> seconds. On Sun, Aug 17, 2003 at 07:21:03PM -0700, Andrew Morton wrote: > I've been running an aic7xx-based desktop on 2.5/2.6 for ages, no > such problems. > A kernel profile would be needed to diagnose this. You could use > readprofile, but as it may be an interrupt problem, the NMI-based oprofile > output would be better. 39160 here, also no such issue. -- wli