From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264898AbTLFBEg (ORCPT ); Fri, 5 Dec 2003 20:04:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264899AbTLFBEg (ORCPT ); Fri, 5 Dec 2003 20:04:36 -0500 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:61840 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S264898AbTLFBEc (ORCPT ); Fri, 5 Dec 2003 20:04:32 -0500 Date: Sat, 6 Dec 2003 02:05:05 +0100 From: Andrea Arcangeli To: Jamie Clark Cc: linux-kernel@vger.kernel.org Subject: Re: 2.4.23pre6aa3 scsi oops Message-ID: <20031206010505.GB14904@dualathlon.random> References: <3FA713B9.3040405@metaparadigm.com> <20031104102816.GB2984@x30.random> <3FA79308.3070300@metaparadigm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3FA79308.3070300@metaparadigm.com> User-Agent: Mutt/1.4.1i 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 Tue, Nov 04, 2003 at 07:52:40PM +0800, Jamie Clark wrote: > I made the quick fix (disabling rq_mergeable) and started the load test. > Will let it run for a week or so. does your later recent email means it deadlocked again even with this disabled? Could you try again with 2.4.23aa1 again just in case? > FYI an observation from my last test: the read latency seems to be much > improved and more consistent under this kernel (2.4.23pre6aa3, before > the oops and before this fix). The maximum latency seemed steady over > the whole test without any of the longish pauses that showed up under > 2.4.19. Quite a difference. nice to hear! thanks.