From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265012AbTF1BeS (ORCPT ); Fri, 27 Jun 2003 21:34:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265023AbTF1BeS (ORCPT ); Fri, 27 Jun 2003 21:34:18 -0400 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:58575 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S265012AbTF1BdZ (ORCPT ); Fri, 27 Jun 2003 21:33:25 -0400 Date: Sat, 28 Jun 2003 03:47:22 +0200 From: Andrea Arcangeli To: "J.A. Magallon" Cc: linux-kernel@vger.kernel.org Subject: Re: 2.4.21rc8aa1 Message-ID: <20030628014722.GE3040@dualathlon.random> References: <20030612032021.GB1571@dualathlon.random> <20030628013435.GG9706@werewolf.able.es> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030628013435.GG9706@werewolf.able.es> User-Agent: Mutt/1.4i X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 28, 2003 at 03:34:35AM +0200, J.A. Magallon wrote: > > Hi, > > On 06.12, Andrea Arcangeli wrote: > > This version has some experimental change to the blkdev layer (latency > > fixes from Chris and Nick too plus the backout of the rc6 latency change > > to see if we can fix it w/o generating overscheduling, especially > > because it doesn't sound the right fix), so I would recommend some > > beating before doing anything critical with it. I would expect it as > > worse to deadlock with some task in D state. It worked fine for me so > > far but I didn't run big stress yet. In theory it should be better, but > > I just wanted to give a warning until it is better tested ;). > > > > URL: > > > > http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.21rc8aa1.gz > > http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.21rc8aa1/ > > > > In sg.c, gcc shouts on: > > PRINT_PROC("%u\t%hu\t%hd\t%hu\t%d\t%d\n", > shp->unique_id, shp->host_busy, shp->cmd_per_lun, > shp->sg_tablesize, (int)shp->unchecked_isa_dma, > (int)shp->hostt->emulated); > > shp->host_busy should be accessed through atomic_read(), I think. correct ;), thanks Andrea