Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759261AbYCEROJ (ORCPT ); Wed, 5 Mar 2008 12:14:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750960AbYCERNy (ORCPT ); Wed, 5 Mar 2008 12:13:54 -0500 Received: from sabe.cs.wisc.edu ([128.105.6.20]:53689 "EHLO sabe.cs.wisc.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750740AbYCERNx (ORCPT ); Wed, 5 Mar 2008 12:13:53 -0500 Message-ID: <47CED4C4.80008@cs.wisc.edu> Date: Wed, 05 Mar 2008 11:13:40 -0600 From: Mike Christie User-Agent: Thunderbird 2.0.0.12 (X11/20080226) MIME-Version: 1.0 To: James Bottomley CC: Mark Hounschell , markh@compro.net, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Tony Battersby Subject: Re: New 2.6.24.2 SG_IO SCSI problems References: <47BD9588.9080803@compro.net> <47BEFD4B.9060803@cs.wisc.edu> <47BEFF5F.9020002@cs.wisc.edu> <47BF0CE2.306@compro.net> <47BF40D7.5050301@compro.net> <47BF4BD0.7080008@cs.wisc.edu> <47CE8AEA.1060209@cfl.rr.com> <1204731854.3047.20.camel@localhost.localdomain> In-Reply-To: <1204731854.3047.20.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2391 Lines: 69 James Bottomley wrote: > On Wed, 2008-03-05 at 06:58 -0500, Mark Hounschell wrote: >> Mike Christie wrote: >>> Mark Hounschell wrote: >>>> Mark Hounschell wrote: >>>>> Mike Christie wrote: >>>>>> Mike Christie wrote: >>>>>>> Mark Hounschell wrote: >>>>>>>> I seem to have run into some sort of regression in the SG_IO >>>>>>>> interface of 2.6.24.2. I have an application that up until 2.6.24 >>>>>>>> worked fine. The 2.6.23.16 kernel works fine. >>>>>>>> >>>>>>>> During reads I get these kernel messages. Writes and other functions >>>>>>>> _seem_ OK. Actually basic >>>>>>>> reads are working. Its with large BC reads using an io_vec list that >>>>>>>> the problem shows up. >>>>>>>> >>>>>>> Are you doing SG_IO to the sg device (/dev/sg*) or to the block device >>>>>>> (/dev/sdX)? >>>>>> If you are doing SG_IO to the sg device, then I know of one regression >>>>>> (well not regression exactly, but I fixed a bug but the patch got >>>>>> partially overwritten by another patch and that caused a new bug). Both >>>>>> bugs are fixed in 2.6.25-rc2. Could you try that out if you are doing >>>>>> SG_IO to the sg device. >>>>>> >>>>> Yes, I'm using /dev/sg*. And yes again I'll checkout 2.6.25-rc2 ASIC. >>>>> >>>>> Thanks >>>>> Mark >>>>> - >>>> >>>> 2.6.25-rc2 does fix the problem I'm having. I don't suppose there is a >>>> patch >>>> lying around for 2.6.24.2?? >>>> >>> I attached a backport of the patch from Tony (added as cc) that is in >>> 2.6.25-rc2. Could you try it out against 2.6.24.2 just to make sure it >>> was this patch, then we can send it to stable. >>> >>> Mark Hounschell wrote: >>> >>> Sorry it took so long. This does fix my problem. I hope it's not to >>> late for 2.6.24.3 >>> >> Backport >> 76d78300a6eb8b7f08e47703b7e68a659ffc2053 >> to 2.6.24 > > Erm, I think you mean: You are right. > > commit 4d2de3a50ce19af2008a90636436a1bf5b3b697b > Author: Tony Battersby > Date: Tue Feb 5 10:36:10 2008 -0500 > > [SCSI] fix BUG when sum(scatterlist) > bufflen > > I can send it ... I thought the error was introduced post 2.6.24, but it > was actually in 2.6.24-rc1 > Ok thanks. -- 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/