itojun@iijlab.net wrote:

>         Traditionally UNIX assumes there will be no changes made to device
>         attach/detach during its runtime.  Because of it UNIX do not really
>         have a good way to notify of changes to the userland programs, and
>         not many userland programs are designed to be adaptable to those
>         changes.  I think that we may need to hide those dynamic changes to
>         network devices (interface removal, pcmcia slot power down and
>         other things) from the userland programs to "preserve" traditional,
>         not-too-many-changes-to-list-of-devices view from uesrland.

I think we need to bite the bullet.  Devices that come and go are here.
We can try and hide it a little, but they are still here.  I'd rather see some
mechanism to notify userland about changes so we can cope with these
things.


--

        -- Lennart