> > 1) Is the shutdown hook facility something recent? If so, who is the
> >    author of it? What is the reason for the mysterious variable
> >    shutdownhooks_done in doshutdownhooks that isn't set anywhere in
> >    the kernel?
> 
> It was added by cgd in May 1995 and evidently only enabled in the
> alpha port because that's probably all Chris needed it for.

At the time, it also had relevance for the i386.  Charles and I worked
together on the interface, so he definitely knew about it (and so i
dunno why he didn't add it to the i386 code).  I would have sworn that
i informed the port maintainers about it, but (looking through mail
archives) apparently i didn't.

as for shutdownhooks_done: I dunno what happened to that.  It should
be set right after it's tested, i'd say.



chris