*BSD News Article 19993


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From: "Alex R.N. Wetmore" <aw2t+@andrew.cmu.edu>
Newsgroups: comp.os.386bsd.bugs
Subject: ed0 driver (was Re: NFS Crash)
Date: Wed, 25 Aug 1993 07:55:30 -0400
Organization: Sophomore, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA
Lines: 27
Message-ID: <wgSpAmS00iV2016idL@andrew.cmu.edu>
NNTP-Posting-Host: po2.andrew.cmu.edu
In-Reply-To: <CCB1x9.43K@agora.rain.com>

Excerpts from netnews.comp.os.386bsd.bugs: 25-Aug-93 Re: NFS crash
(NetBSD 0.9) by David Greenman@agora.rai 
>    The new driver does work with the 3c503, and the performance and
> reliability with it exceed the 'ec' driver. As far as the over-run's that
> you are seeing are concerned, the 'ec' driver experiances these as well -
> it just doesn't do anything about it, which can lead to board lock-ups
> and other not-so-nice behavior. And regarding the d0000 default for ed0,
> nothing prevents you from setting this to anything you like. I use cc000
> myself so that I can switch between SMC 8013 boards and 3c503 boards
> without rebuilding a different kernel.

I had a lot of problems getting the ed0 driver setup with a 3c503 as
well (using d0000, 250).  I couldn't figure out how to configure the
driver to use the aui port (instead of the thin port).  It looked like a
flags 0x01 in the config file would do it, but no such luck.

Also, what sorts of crashes would I see from the ring buffer
overflowing?  A quick panic-reset or just having the machine die slowly
(ie, things work, some things break, everything breaks, maybe over a 5
minute period).

It did annoy me that the default NetBSD-0.9 kernel came with the ed0
driver installed in a way that the 3c503 didn't support, because I
needed networking to get the kernel source.

alex