[Info-vax] Creating an open source version of VMS, was: Re: OpenVMS Hobbyist Notification

[Simon Clubley]

On 2020-03-11, Scott Dorsey <kludge at panix.com> wrote:
> Simon Clubley  <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote:
>>
>>Think about how Linux is much more functional and cleaner underneath
>>when compared to the original versions of Unix, yet can still compile and
>>run earlier Unix application level source code.
>
> Umm... have you actually looked inside the linux kernel recently?  It's...
> well... it's a little more bulky than 4.2BSD...

Yes, I have and yes, there's a _lot_ of code in there. :-)

And yes, I wish the original arguments in favour of a microkernel
to isolate that functionality had taken hold in Linus in those early days.

However, that doesn't change the fact that there is a clean
isolation between the architecture specific and none architecture
specific code and that Linux has a very nice module plugin architecture
that allows all kinds of device drivers and filesystem components to be
added and removed cleanly during normal system operation as required.

That same architecture also allows those same components to have
cleanly defined boundaries between them.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.