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Date:      Sun, 23 Jan 2000 01:19:25 -0800 (PST)
From:      Brian Beattie <beattie@aracnet.com>
To:        Assar Westerlund <assar@sics.se>
Cc:        Greg Lehey <grog@lemis.com>, Robert Watson <robert+freebsd@cyrus.watson.org>, fs@FreeBSD.ORG
Subject:   Re: UDF, userfs
Message-ID:  <Pine.LNX.4.10.10001230117530.4117-100000@shell1.aracnet.com>
In-Reply-To: <5liu0l1ay3.fsf@assaris.sics.se>

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On 23 Jan 2000, Assar Westerlund wrote:

> Greg Lehey <grog@lemis.com> writes:
> > Hmm.  A kld runs in kernel context, not user context.  Sure, it's
> > easier to load than rebuilding a kernel, and I believe klds are the
> > correct approach to added kernel functionality, but it doesn't offer
> > one of the prime advantages of userland development: if your program
> > crashes, your program crashes, not the system.  If you're developing a
> > kld, a bug can crash the system.
> 
> Yes, but both the Coda and the Arla kld are very simple and all the

I would disagree that they are very simple.

> real work (and thus, the devlopment) takes part in the user space
> daemon.  The kld is mostly there as a way of communicating with the
> kernel.
> 
> /assar
> 

Brian Beattie            | The only problem with
beattie@aracnet.com      | winning the rat race ...
www.aracnet.com/~beattie | in the end you're still a rat



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