"Serge E. Hallyn" <[email protected]> writes:
> Quoting Eric W. Biederman ([email protected]):
>>
>> The wait id is the pid returned by wait. For tasks that span 2
>> namespaces (i.e. the process leaders of the pid namespaces) their
>> parent knows the task by a different PID value than the task knows
>> itself. Having a child with PID == 1 would be confusing.
>
> Is it possible here to have wid conflicts?
>
> Does that matter?
>
> Looking at sysvinit, it seems that it does. If the wid happens
> to conflict with the pid of one of the children init knows about,
> it could confuse init.
No. The wid is in the pspace of the parent, and the pid is in the processes
pspace. Add is in any pspace are unique.
Eric
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