Re: (pspace,pid) vs true pid virtualization

[Dave Hansen <haveblue@us.ibm.com>]

On Thu, 2006-02-16 at 12:44 -0600, Serge E. Hallyn wrote:
> Now Dave and I were just talking about actually using the
> init process in a pspace to do administration from outside.
> For instance, the userspace code, in /sbin/pspaceinit, which
> runs as (pspace 2, pid 1), could open a pipe with it's parent
> (pspace1, pid 234).  pid 234 can then ask the init process to
> do things like list processes, kill a process, and maybe even
> recursively talk to the init process in pspace 3.

This would require a much smarter init, and that a child be nice,
cooperate and pass on what is requested of it if it's nested children
are to be killed.  If a child decided to be mean and ignore its parent's
requests, the parent can always just kill the child.

(Read the last sentence, and in case you're wondering, no I don't have
any children in real life)

-- Dave

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