Hi,
On Friday, 27 January 2006 04:42, Kay Sievers wrote:
> On Wed, Jan 25, 2006 at 09:09:27PM -0500, Jim Crilly wrote:
> > On 01/24/06 11:44:37PM +0100, Pavel Machek wrote:
> > > On Út 24-01-06 17:38:34, Dave Jones wrote:
> > > > > We'll of course try to get the interface right at the first
> > > > > try. OTOH... if wrong interface is in kernel for a month, I do not
> > > > > think it is reasonable to keep supporting that wrong interface for a
> > > > > year before it can be removed. One month of warning should be fair in
> > > > > such case...
> > > >
> > > > Users want to be able to boot between different kernels.
> > > > Tying functionality to specific versions of userspace completely
> > > > screws them over.
> > >
> > > Well, by the time we have any _users_ interface should be
> > > stable. Actually I believe interface will be stable from day 0, but...
> > >
> > I'm sure gregkh thought the same thing with about sysfs and udev and we've
> > seen how well that's worked out...
>
> Well, that was just an unfortunate "bug".
>
> Declaring interfaces "stable" makes as much sense as all the other
> tries to define crazy enterprise "standards" nobody follows in real
> world.
>
> In a developing environment, interfaces _become_ stable and don't get
> _declared_ by anybody as such. We are not talking about syscall
> interfaces or things that are simple enough to be kept stable, if you
> cross a certain level of complexity, you just can't apply these rules
> anymore.
>
> Interfaces mature over the time they get used. Only the _use_ of it
> collects the needed information to form the model behind it. They get
> improved up to the point that changing the interface causes more
> pain than it's worth this change. Then an interface has _become_ "stable"
> cause it makes sense at that point.
Agreed.
> "by the time we have any _users_ interface should be stable", that's
> such a nonsense. If you don't have any user, you don't know if this
> interface works at all and only if it gets used you get the needed
> feedback to improve it.
I think Pavel meant "users who don't work on it themselves".
Greetings,
Rafael
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