*BSD News Article 45326


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From: glen@subzero.winternet.com (Glen Overby)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Future Domain 8 Bit did you get one working?
Date: 11 Jun 1995 19:43:33 GMT
Organization: BORG Institute of Technology
Lines: 22
Message-ID: <3rfh15$k2s@blackice.winternet.com>
References: <3r7p3p$drb@dale.ee.pdx.edu>
NNTP-Posting-Host: subzero.winternet.com
Keywords: Scsi Controller Help

Brian O'Leary <briano@ee.pdx.edu> wrote:
>I was wondering if anyone has beeen able to get a Future Domain 8 bit
>scsi controller to work with any Free BSD release after 2.0R? The system

During one of the -SNAP releases, a new, completely rewritten driver
replaced the one in 2.0R.  While that was a good move, IMHO, it causes
me problems with my Seagate ST-02 controler (same guts as your FD) +
Seagate ST296N (80MB).

Even the 2.0 driver isn't all that stable on my hardware and has been
slowly corrupting the /usr filesystem; today it took out libexec :-(

After much tracing of the new driver, I found the problem to be in the
data copying.  This is assembler code which I can't personally find any
problem with.  I recoded the assembly-level copy in C (same algorithm)
and it works better but slower.  I can bring the system up to
single-user but it panics quickly when apparently going to swap space.

Glen
 B