Date: Thu, 7 Oct 2004 15:49:27 -0700
From: William Lee Irwin III <wli@holomorphy.com>
To: Wakko Warner <wakko@animx.eu.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Adaptec drivers and 2.6.x kernels
Message-ID: <20041007224927.GZ9106@holomorphy.com>
References: <20041007222709.GA24314@animx.eu.org>
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On Thu, Oct 07, 2004 at 06:27:09PM -0400, Wakko Warner wrote:
> I've been irritated with this for some time now.  I've seen this with 2.6.7
> and 2.6.8.1 with both aic7xxx and aic79xx drivers.
> I have a bad CD (I burned it as fast as my burner could force.  I expected
> errors).  The scsi drivers do not handle errors very well.  I tried to read
> this bad cd on an ide cdrom (I have 2 one on hda and one on hdd), it just
> gives up with a read error.  If I do this on scd0 or scd1 (scd0 is an LG DVD
> multi burner using an acard u2w scsi to udma66 converter, scd1 is a plextor
> cdrw 40/12/40 narrow scsi), then the driver offlines the drive and I can't
> use it anymore.
> With this problem, the device recovered with scd1.  It was a simple:
> cd /proc/scsi
> echo "scsi remove-single-device 2 0 1 0" > scsi
> echo "scsi add-single-device 2 0 1 0" > scsi
> And it now works again.  Sometimes it doesn't.  scsi bus 0 and 1 are on the
> aic79xx [...]

I have boxen with aic7xxx and aic79xx that don't see issues of this
kind (granted, with bleeding edge -mm). Could you describe the systems
in more detail?


-- wli
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