Messages in this thread | | | Date | Fri, 19 May 2006 08:13:34 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 0/9] namespaces: Introduction |
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Herbert Poetzl <herbert@13thfloor.at> wrote: > > let me > give a simple example here:
Examples are useful.
> "pid virtualization" > > - Linux-VServer doesn't really need that right now. > we are perfectly fine with "pid isolation" here, we > only "virtualize" the init pid to make pstree happy > > - Snapshot/Restart and Migration will require "full" > pid virtualization (that's where Eric and OpenVZ > are heading towards)
snapshot/restart/migration worry me. If they require complete serialisation of complex kernel data structures then we have a problem, because it means that any time anyone changes such a structure they need to update (and test) the serialisation.
This may be a show-stopper, in which case maybe we only need to virtualise pid #1.
> - OpenSSI and *Mosix require system wide pid spaces > which probably could be implemented with virtual > pid spaces as well > > - many security addons provide something called pid > randomization, and I think they could probably > benefit from a virtual pid space, too
ok.
Anyway. Thanks, guys. It sound like most of this work will be nicely separable so we can think about each bit as it comes along. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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