Re: clone() and CLONE_PID

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 10 Sep 1999 10:52:30 +0100 (BST)


> You have this the wrong way round. The CLONE_PID option is one
> approach to implementing signals according to the POSIX threads
> spec. But it is not the only approach, and since it would require a
> separate notion of thread id to be added to the kernel, it might not
> be the simplest approach (as far as the kernel is concerned).

CLONE_PID causes enough potential security hazards it is going away in
2.2.13 and some point in 2.3.x. It was never intended to be user accessible
its a hack for the boot up code

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