jail extensions
Robert Watson
rwatson at FreeBSD.org
Thu Jun 8 13:46:17 UTC 2006
On Wed, 7 Jun 2006, Brooks Davis wrote:
> It's not clear to me that we want to use the same containers to control all
> resouces since you might want a set of jails sharing IPC resources or being
> allocated a slice of processor time to divide amongst them selves if we had
> a hierarchical scheduler. That said, using a single prison structure could
> do this if we allowed the administrator to specifiy a hierarchy of prisons
> and not necessicairly enclose all resources in all prisons.
When looking at improved virtualization support for things like System V IPC,
my opinion has generally been that we introduce virtualization as a primitive,
and then have jail use the primitive much in the same way it does chroot.
This leaves flexibility to use it without jail, etc, but means we have a
well-understood and well-defined interaction with jail.
Robert N M Watson
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