linux-kernel - Re: [regression] nf_iterate(), BUG: unable to handle kernel NULL pointer dereference

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Message-ID: <20080724143706.GA8461@gondor.apana.org.au>
Date:	Thu, 24 Jul 2008 22:37:06 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Patrick McHardy <kaber@...sh.net>, Ingo Molnar <mingo@...e.hu>,
	David Miller <davem@...emloft.net>, w@....eu,
	davidn@...idnewall.com, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, stefanr@...6.in-berlin.de,
	rjw@...k.pl, ilpo.jarvinen@...sinki.fi,
	Dave Jones <davej@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [regression] nf_iterate(), BUG: unable to handle kernel NULL pointer dereference

On Thu, Jul 24, 2008 at 08:11:49AM -0500, Matt Mackall wrote:
>
> You don't honestly expect people to correctly code to such a standard,
> do you? People will assume that ksize never fails, they will be wrong,
> and computers will die.

If we follow this argument then most of our interfaces would be
broken.

> >  You're taking
> > away an entire interface just because an underlying implementation
> > that's used by a very small proportion of users doesn't do the
> > right thing.
> 
> Umm, no. There were very few users to being with, so it was actually a
> fairly large proportion. And that suggested the interface was a bad
> idea.

Huh? I'm talking about users of the kernel.  A very small proportion
of those use SLOB.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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