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Re: [PATCH 0/9] namespaces: Introduction [message #3302 is a reply to message #3275]

Sun, 21 May 2006 22:57

Pavel Machek
Messages: 34
Registered: February 2006

Member

On P� 19-05-06 08:13:34, Andrew Morton wrote:
> 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.

Well, if pid #1 virtualization is only needed for pstree, we may want
to fix pstree instead :-).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
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[Message index]

		Re: [PATCH 0/9] namespaces: Introduction By: Andrew Morton on Thu, 18 May 2006 17:34
		Re: [PATCH 0/9] namespaces: Introduction By: John Kelly on Thu, 18 May 2006 19:23
		Re: [PATCH 0/9] namespaces: Introduction By: Sam Vilain on Thu, 18 May 2006 23:28
		Re: [PATCH 0/9] namespaces: Introduction By: Paul Jackson on Fri, 19 May 2006 04:24
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Fri, 19 May 2006 09:23
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Fri, 19 May 2006 11:41
		Re: [PATCH 0/9] namespaces: Introduction By: Jeff Dike on Fri, 19 May 2006 17:52
		Re: [PATCH 0/9] namespaces: Introduction By: Sam Vilain on Sat, 20 May 2006 00:16
		Re: [PATCH 0/9] namespaces: Introduction By: Herbert Poetzl on Fri, 19 May 2006 12:42
		Re: [PATCH 0/9] namespaces: Introduction By: Andrew Morton on Fri, 19 May 2006 15:13
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Fri, 19 May 2006 16:27
		Re: [PATCH 0/9] namespaces: Introduction By: Andrew Morton on Fri, 19 May 2006 16:40
		Re: [PATCH 0/9] namespaces: Introduction By: Dave Hansen on Fri, 19 May 2006 20:17
		RE: [PATCH 0/9] namespaces: Introduction By: Hua Zhong on Fri, 19 May 2006 18:28
		Re: [PATCH 0/9] namespaces: Introduction By: Dave Hansen on Fri, 19 May 2006 20:04
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Sat, 20 May 2006 03:18
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Sun, 21 May 2006 00:48
		Re: [PATCH 0/9] namespaces: Introduction By: Pavel Machek on Sun, 21 May 2006 22:57
		Re: [PATCH 0/9] namespaces: Introduction By: Andrey Savochkin on Fri, 19 May 2006 13:47
		Re: [PATCH 0/9] namespaces: Introduction By: Andrew Morton on Fri, 19 May 2006 15:25
		Re: [PATCH 0/9] namespaces: Introduction By: Herbert Poetzl on Sat, 20 May 2006 21:24
		Re: [PATCH 0/9] namespaces: Introduction By: ebiederm on Mon, 22 May 2006 17:23
		Re: [PATCH 0/9] namespaces: Introduction By: Sam Vilain on Sat, 20 May 2006 00:16

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