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Date:      Tue, 25 Aug 1998 23:04:40 +0200 (CEST)
From:      Wilko Bulte <wilko@yedi.iaf.nl>
To:        joelh@gnu.org
Cc:        dakott@alpha.delta.edu, hackers@FreeBSD.ORG
Subject:   Re: Adaptec 1542i Performance on -stable [was Re: SCSI Controller]
Message-ID:  <199808252104.XAA01621@yedi.iaf.nl>
In-Reply-To: <199808251858.NAA00795@detlev.UUCP> from Joel Ray Holveck at "Aug 25, 98 01:58:19 pm"

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As Joel Ray Holveck wrote...
> > I did have some strange kernel panics when I installed my hardrive
> > in front of the CDROM that previously had occupied the bus alone.
> > The drive would log timeout errors.  Then, as now, my root
> > partition/swap et. al was on this drive, the kernel would panic.
> > Also, sporadically, the drive would load the kernel sucessfully for
> > booting, but would just hang when the kernel attempted to mount the
> > root partition.  I configured the hardrive to supply the bus
> > termination, instead of the CDROM, as well as recompiling my kernel
> > sans the "TUNE_1542" option, and I haven't had a problem since.
> 
> Many 1542s (particularly the B series) were very sensitive to poor
> cabling and termination problems.

I think there were also cabling sensitivities in the C series(?).

Wilko
_     ______________________________________________________________________
 |   / o / /  _  Bulte 				  email: wilko@yedi.iaf.nl 
 |/|/ / / /( (_) Arnhem, The Netherlands          WWW  : http://www.tcja.nl
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