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    SubjectRe: [PATCH 05/10] Core checkpoint/restart support code
    Quoting Nathan Lynch (ntl@pobox.com):
    > On Sun, 2011-04-03 at 14:03 -0500, Serge E. Hallyn wrote:
    > > Quoting ntl@pobox.com (ntl@pobox.com):
    > > > Only a pid namespace init task - the child process produced by a call
    > > > to clone(2) with CLONE_NEWPID - is allowed to call these. The state
    > >
    > > So you make this useful for your cases by only using this with
    > > application containers - created using lxc-execute, or, more precisely,
    > > using lxc-init as the container's init. So a container running a stock
    > > distro can't be checkpointed.
    >
    > Correct, a conventional distro init won't work, and application
    > containers are my focus for now, at least.
    >
    >
    > > Is this just to keep the patch simple for now, or is there some reason
    > > to keep this limitation in place?
    >
    > I guess you're asking whether non-pid-init processes could be allowed to
    > use the syscalls?

    No. I'm asking whether you are intending to later on change the checkpoint
    API to allow an external task to checkpoint a pid-init process, rather than
    the pid-init process having to initiate it itself.


    -serge


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