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Date: Sun, 14 Sep 1997 19:30:35 -0700 (PDT)
From: Alex <garbanzo@hooked.net>
To: "Daniel M. Eischen" <deischen@iworks.InterWorks.org>
cc: aic7xxx@FreeBSD.ORG
Subject: Re: More timeout problems :(
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On Sun, 14 Sep 1997, Daniel M. Eischen wrote:

> I think the Lightning has problems with tagged queueing.  If you
> send too many commands to it, it generates QUEUE FULL responses
> to the initiator.

The Lightning has my /usr/home partition and nothing else, and the only
thing off that partition I was running was the making of kde, which I've
done before. *shrug*.  As I said, this is the first time that the ahc
driver has given me trouble, and _both_ drives were timing out, the cd
with an inactive audio cd in it wasn't doing anything.

 
> > > How's your bus terminated?
> >
> > <jumper termination>-<sd1>-<aic>-<sd0>-<cd0>-<jumper termination>
> 
> I'd suggest using sd0 to terminate the bus, as you're more
> likely to get active termination, rather than passive from
> your CD-ROM.
> 
> > I know the cd is terminated, and am fairly sure about the Lightning as
> > when I added it, I had a lot of cable trouble, and I've run make world at 
> > least 5 times.  If all else fails I guess I'll be stuck with my venerable
> > aha-1542.
> 
> You can always disable tagged queueing for the ahc driver if you
> continue to have problems.

How much of a performance penalty will that be?

- alex