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Date:      Sun, 30 Apr 1995 07:27:18 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        davidg@Root.COM
Cc:        dufault@hda.com, joerg_wunsch@uriah.heep.sax.de, mrami@mramirez.sy.yale.edu, freebsd-bugs@freefall.cdrom.com
Subject:   Re: i386/369: (AHA1542A problems)
Message-ID:  <199504300527.HAA03173@uriah.heep.sax.de>
In-Reply-To: <199504300305.UAA03104@corbin.Root.COM> from "David Greenman" at Apr 29, 95 08:05:03 pm

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As David Greenman wrote:
> 
> >Is anyone else having AHA154x problems?

>    The 1542A is broken. It fails to write data if the size of the write is
> larger than 16K. I've heard that there may be some revisions of the board that
> work correctly, but all versions of the 1542A that I have tested have this
> problem. The 1542B and 1542C don't have this problem.

Is it a hardware of firmware problem (to the best of your knowledge)?

I believe (but am not sure) that the PR submitter has been working with
his AHA1542A before under FreeBSD.

My 1540A seems to work, except savecore complains (but only now, in
2.1-development) about "hosts_stat<anything>" and fails to read a core
dump out of the swap partition.  I can read the dump using dd however.
The difference is that savecore uses a 1 MB buffer.  (But perhaps this
is not a 1540A problem but rather a question that the machine has only
6 MB RAM, so the system tries to swap when savecore is running.)

(Q: time for an option to savecore forcing a particular read buffer
size?)

All i can say: my 1540A worked all the time.  (Yes, with FreeBSD.  I
don't even know if it has ever booted a DOS in his lifetime. :-)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)



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