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    From
    SubjectRe: init's children list is long and slows reaping children.
    Date
    Bill Davidsen <davidsen@tmr.com> writes:

    > As long as the original parent is preserved for getppid(). There are programs
    > out there which communicate between the parent and child with signals, and if
    > the original parent dies, it undesirable to have the child getppid() and start
    > sending signals to a program not expecting them. Invites undefined behavior.

    Then the programs are broken. getppid is defined to change if the process
    is reparented to init.

    Eric
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