From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: libata and md issues with 2.9.1-rc1 Date: Wed, 25 Aug 2004 08:53:12 +0400 Sender: linux-ide-owner@vger.kernel.org Message-ID: <412C1B38.7090401@wasp.net.au> References: <412B79DF.2000705@wasp.net.au> <412BC1C4.2060506@clanhk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <412BC1C4.2060506@clanhk.org> To: "J. Ryan Earl" Cc: linux-ide@vger.kernel.org, RAID Linux List-Id: linux-raid.ids J. Ryan Earl wrote: > Brad Campbell wrote: > >> Just a heads up. I'm experiencing "issues" with 2.6.9-rc1 that don't >> occur with 2.6.5. >> >> I run a 10 disk raid-5 on 3xPromise SATA150 cards and a 2 disk raid-0 >> on the on-board VIA chipset. >> The 10 disks are Maxtor Maxline-II SATA drives and the raid-0 is a >> pair of WD2000JB drives with >> Addonics SATA->PATA converters. > > > Did you try RAID-0 with the pair of Western Digital drives on the two > free Promise slots? If that fails similarly, it might not be a libata > issue. I thought about it. Given the drives are giving write errors when I write to /dev/md1 and not giving write errors when the raid is stopped and I write to the individual disks then it *must* be some issue with the hardware drivers. If the block layer can submit a block to the driver that causes the drive to error out, then it's really a fault of the driver for trying to do something illegal. Anyway, I have done a clone of the libata-2.6 bk tree and I'm trying to figure out how to extract all the individual csets between 2.6.6 and 2.6.7-rc1 so I can back them out 1 by 1 and see what caused the problem. My other tack is to enable full SCSI debugging and compare the trace from 2.6.5 and 2.6.7-rc1 to see what is different. I will give your suggestion a try when I get home tonight and fire it up on the extra promise channels. Can anyone point me to a dummys guide to regression testing with BK? I read a great one by the WINE guys years ago on regression testing by date with CVS and it has proved immensely helpful over the years. Regards, Brad