Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932678AbWLNU1a (ORCPT ); Thu, 14 Dec 2006 15:27:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932784AbWLNU1a (ORCPT ); Thu, 14 Dec 2006 15:27:30 -0500 Received: from brick.kernel.dk ([62.242.22.158]:29308 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932678AbWLNU13 (ORCPT ); Thu, 14 Dec 2006 15:27:29 -0500 Date: Thu, 14 Dec 2006 21:28:54 +0100 From: Jens Axboe To: Alistair John Strachan Cc: Linus Torvalds , Linux Kernel Mailing List , Jeff Garzik Subject: Re: Linux 2.6.20-rc1 Message-ID: <20061214202854.GM5010@kernel.dk> References: <200612141930.19797.s0348365@sms.ed.ac.uk> <200612142016.55286.s0348365@sms.ed.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200612142016.55286.s0348365@sms.ed.ac.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1607 Lines: 41 On Thu, Dec 14 2006, Alistair John Strachan wrote: > On Thursday 14 December 2006 19:57, Linus Torvalds wrote: > > On Thu, 14 Dec 2006, Alistair John Strachan wrote: > > > `hddtemp' has stopped working on 2.6.20-rc1: > > > > Hmm. Can you do the strace on a working kernel too? For example, is it > > that the 0x30d ioctl (which is HDIO_GET_IDENTITY) used to work? If it's a > > SATA device, and you _used_ to use the PATA drivers, some of the old > > IDE-only ioctl's simply don't work when used in native SATA > > configurations. > > I've always been using sata_nv and libata. All the drives in question are SATA > devices, no configuration change other than this kernel has taken place. > > Indeed, the configs are very similar. Find the configs, straces on both > kernels, and the hddtemp binary (AMD64, I'm afraid) here: > > http://devzero.co.uk/~alistair/2.6.20-rc1-hddtemp/ Looking at the strace, it would _seem_ that an SG_IO failure could very well be the reason for the diverged paths. And that would indicate another bug in that area, outside of what we already fixed for 2.6.20-rc1. Is the hddtemp source not available? > > If you can do a "git bisect" on this, that would help a lot. > > I'll do that if nobody comes up with anything obvious. If you can just test 2.6.19-git1, then we'll know if it's the SG_IO patch again. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/