Date: Thu, 26 Mar 1998 21:16:11 -0600 From: Doug Ledford <dledford@dialnet.net> To: Steve Brueggeman <stevebr@primenet.com> Cc: aic7xxx@FreeBSD.ORG Subject: Re: aic7xxx-5.0.9 second test patch Message-ID: <351B19FB.D7C371C3@dialnet.net> References: <351AE6B9.9B0DDC49@dialnet.net> <351d167d.2185293@smtp.primenet.com>
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Steve Brueggeman wrote:
>
> Still doesn't work for me. Same errors.
>
> Interestingly enough, I have the exact same tape drive at work, and it doesn't
> have this problem. Have not checked the firmware revisions on both. My home
> computer has two adaptec AHA2940UW's, where my work computer only has one, and
> my work computer has my tape as the highest ID, and while my tape is the highest
> ID, it's on my first card, so the second card finds devices after the tape.
>
> Have not had time to try any more experimentation. I'll try to take my tape
> from home, to my work computer this weekend, and see if the problem repeats
> there.
Do an experiment for me. Before changing anything around, try disabling all
synchronous and wide negotiation to the tape drive and see if it works. If
it does, then let me know what your CPU at home and at the office are as
there may be some kind of CPU speed related timing bug lurking in here.
There may also be a generic issue where certain cards simply are broken in
regard to REQINIT handling (kind of a partial latent defect type thing, like
the CPU I once had that would run linux 24 hours a day 7 days a week without
a problem, but the first time I tried to run 16 bit apps on it, it would
crash presumeably because some of the 16 bit microcode had gotten fried when
it overheated).
--
Doug Ledford <dledford@dialnet.net>
Opinions expressed are my own, but
they should be everybody's.
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