Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751065AbWBCQjF (ORCPT ); Fri, 3 Feb 2006 11:39:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751206AbWBCQjE (ORCPT ); Fri, 3 Feb 2006 11:39:04 -0500 Received: from iriserv.iradimed.com ([69.44.168.233]:59868 "EHLO iradimed.com") by vger.kernel.org with ESMTP id S1751065AbWBCQjD (ORCPT ); Fri, 3 Feb 2006 11:39:03 -0500 Message-ID: <43E386F5.6090305@cfl.rr.com> Date: Fri, 03 Feb 2006 11:38:13 -0500 From: Phillip Susi User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Martin Drab CC: Bill Davidsen , Cynbe ru Taren , Linux Kernel Mailing List , "Salyzyn, Mark" Subject: Re: FYI: RAID5 unusably unstable through 2.6.14 References: <20060117193913.GD3714@kvack.org> <43E26CB6.7030808@tmr.com> <43E379C2.2020607@cfl.rr.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 03 Feb 2006 16:39:35.0007 (UTC) FILETIME=[6A6ECEF0:01C628E0] X-TM-AS-Product-Ver: SMEX-7.2.0.1122-3.52.1006-14245.000 X-TM-AS-Result: No--9.400000-5.000000-31 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1089 Lines: 27 Martin Drab wrote: > On Fri, 3 Feb 2006, Phillip Susi wrote: > >> It looks like the problem is in that controller card and its driver. Was this >> a proprietary closed source driver? >> > > No, it was the kernel's AACRAID driver (drivers/scsi/aacraid/*). And I've > consulted that with Mark Salyzyn who told me that it is the problem of the > upper layers which are only zero fault tollerant and that driver con do > nothing about it. > That's a strange statement, maybe we could get some clarification on it? From the dmesg lines you posted before, it appeared that the hardware was failing the request with a bad disk sense code. As I said before, normally Linux has no problem reading the good parts of a partially bad disk, so I wonder exactly what Mark means by "upper layers which are only zero fault tollerant"? - 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/