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Date: Wed, 28 Nov 2007 22:12:38 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>, linux-kernel@vger.kernel.org,
       linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: 2.6.24-rc3-mm2: Result: hostbyte=0x01
 driverbyte=0x00\nend_request: I/O error
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> > [  225.378426] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.378659] end_request: I/O error, dev sdb, sector 141295703
> > [  225.390133] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.391988] end_request: I/O error, dev sdb, sector 141295703
> > [  225.392463] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.392625] end_request: I/O error, dev sdb, sector 141295703
> > [  225.392999] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.393161] end_request: I/O error, dev sdb, sector 141295703
> > [  225.393571] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.393731] end_request: I/O error, dev sdb, sector 141295703
> > [  225.394382] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.394544] end_request: I/O error, dev sdb, sector 141295703
> > [  225.395247] sd 2:0:1:0: [sdb] Result: hostbyte=0x01 driverbyte=0x00
> > [  225.395412] end_request: I/O error, dev sdb, sector 141295703
> 
> I don't know whether this failure was a scsi thing or an ata thing?

The ATA layer would print diagnostics if it failed the command so I'm a
bit baffled by the report. It looks like the SCSI mid layer rejected it
before we even got it ?