In
<CAE1XxDEyOS91wadT+9t_aXz0Pw+ok=YD=mw_V4Fx9xQ=qqq...@mail.gmail.com>,
on 11/16/2012
   at 10:18 AM, John Gilmore <jwgli...@gmail.com> said:

>A minimal requirement for their integrity is that two 
>dispatchables not access one of them concurrently.

No. That is an unnecessary and insufficient condition. The rules for
accessing control blocks safely vary depending on the control block
and the type of access.

-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     Atid/2        <http://patriot.net/~shmuel>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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