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    SubjectRe: [PATCH 0/7][v7] Container-init signal semantics
    On Sat, 17 Jan 2009 12:26:38 -0800
    Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> wrote:

    >
    > Container-init must behave like global-init to processes within the
    > container and hence it must be immune to unhandled fatal signals from
    > within the container (i.e SIG_DFL signals that terminate the process).
    >
    > But the same container-init must behave like a normal process to
    > processes in ancestor namespaces and so if it receives the same fatal
    > signal from a process in ancestor namespace, the signal must be
    > processed.
    >
    > Implementing these semantics requires that send_signal() determine pid
    > namespace of the sender but since signals can originate from workqueues/
    > interrupt-handlers, determining pid namespace of sender may not always
    > be possible or safe.
    >

    Is this feature is for blocking signals from children to name-space
    creator(owner) ? And automatically used when namespace/cgroup is created ?
    IOW, Container-init is Namespace-Cgroup-init ?

    I'm glad if you add some documentation updates about how-it-works to patch set.

    Thanks,
    -Kame




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