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From: Sturla Molden <sturla.molden@gmail.com>
Subject: Re: multiprocessing module backport from 3 to 2.7 - spawn feature
Date: Fri, 30 Jan 2015 21:15:05 +0000 (UTC)
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Andres Riancho <andres.riancho@gmail.com> wrote:

> Spawn, and I took that from the multiprocessing 3 documentation, will
> create a new process without using fork(). 

> This means that no memory
> is shared between the MainProcess and the spawn'ed sub-process created
> by multiprocessing.

If you memory map a segment with MAP_SHARED it will be shared, even after a
spawn. 

File descriptors are also shared.