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Date:      Tue, 28 Dec 1999 14:28:54 -0800 (PST)
From:      Kip Macy <kip@lyris.com>
To:        Vivek Khera <khera@kciLink.com>
Cc:        Mike Smith <msmith@freebsd.org>, stable@freebsd.org
Subject:   Re: panic 
Message-ID:  <Pine.SOL.4.05.9912281425060.3860-100000@luna.lyris.com>
In-Reply-To: <14440.52608.752256.799982@onceler.kcilink.com>

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On Tue, 28 Dec 1999, Vivek Khera wrote:

> >>>>> "MS" == Mike Smith <msmith@freebsd.org> writes:
> 
> >> FreeBSD has a tendency to panic in out of mbuf situations.  That
> >> shouldn't happen.
> 
> MS> The semantics of "should" and "shouldn't" are debatable.  In this case, 
> MS> the panic is a simple indicator that the administrator hasn't correctly 
> MS> tuned the system.  Many would argue that this is a much better outcome 
> MS> than a system that performs poorly for no immediately perceptible reason, 
> MS> and it certainly encourages the prompt application of a correct 
> MS> adjustment.
> 
> I come from the school of thought that nothing should make the system
> crash. It should try its hardest to handle the workload thrown at it.
> Under no circumstances is a panic acceptable.  The system should at
> worst drop some connections and issue a warning, or plod through and
> issue a warning.  Kernel panic is *never* the right thing to do, and
> should be considered an error in the kernel.
> 
> It is this kind of cavalier attitude towards system problems that
> makes people scared of using open source systems.
> 

I think it is ultimately a religious issue and not a customer issue which
is why FreeBSD has the strengths that it does and the weaknesses that it
does. David Greenman backed me up when I said the same thing. However,
there are numerous others in the FreeBSD group who believe that it is the
users' responsibility. 


				-Kip




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