Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace

Herbert Poetzl wrote:
>>>>First of all, I don't think syscalls like
>>>>"do_something and exec" should be introduced.
>>>
>>>Linux-VServer does not have any of those syscalls
>>>and it works quite well, so why should we need such
>>>syscalls?
>>
>>My question is the same! Why?
> 
> 
> because we don't need them?!

I think that the reason behind such syscalls is to make sure that the
process is "clean" when it enters a new container. "clean" means that the
process is not holding in memory an identifier, like a pid for instance,
that doesn't make sense in the new container.

This is really a edge case which supposes that processes changing
containers don't know what they are doing. This case also depends on how
identifiers will be virtualized.

C.
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• References:
  • [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: [email protected] (Eric W. Biederman)
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Kirill Korotaev <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: [email protected] (Eric W. Biederman)
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Kirill Korotaev <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: [email protected] (Eric W. Biederman)
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Kirill Korotaev <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Herbert Poetzl <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Kirill Korotaev <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Herbert Poetzl <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Kirill Korotaev <[email protected]>
  • Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
    • From: Herbert Poetzl <[email protected]>

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