To: linux-kernel@vger.kernel.org
From: Helge Deller <deller@gmx.de>
Subject: RE: [PATCH] Time-based RFC 4122 UUID generator
Date: Tue, 20 Nov 2007 23:58:38 +0100
Message-ID: <fhvoqu$u6l$1@ger.gmane.org>
References: <fhqbkn$ttt$1@ger.gmane.org> <MDEHLPKNGKAHNMBLJOLKCECCIFAC.davids@webmaster.com>
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David Schwartz wrote:
> Any UUID generator that can produce duplicate UUIDs with probability
> significantly less than purely random UUIDs is so badly broken that it
> should not ever be used. Anyone who finds such a UUID generator should
> immediately either fix it or throw it on the junk heap. 

That's what my patch is about: Solve the problem at it's root.

> Anyone who 
> knowingly uses such a UUID generator should be publically shamed.

The problem is that on Linux there is currently no time-based UUID generator
which really solves the problem.
Good (bad?) thing is: Other UNIXes aren't better either.

> Rather than (or at the very least, in addition to) adding a new UUID
> generator, let's fix the one(s) we have.

Some things aren't fixable with userspace only. At least _some_ kind of help
is needed from the kernel.
Why not providing one single working version directly from the kernel and
dropping others you can't cleanly fix anyway ?

Helge

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