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Re: Memory corruption due to word sharing

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On Fri, Feb 03, 2012 at 12:00:03PM -0800, Linus Torvalds wrote:
> On Fri, Feb 3, 2012 at 11:16 AM, Andrew MacLeod <amacleod@xxxxxxxxxx> wrote:

[ . . . ]

> Having access to __ATOMIC_ACQUIRE would actually be an improvement -
> it's just that the architectures that really care about things like
> that simply don't matter enough for us to really worry about them
> (ia64 being the prime example), and everybody else either doesn't need
> extra barriers at all (x86), or might as well use a full barrier (most
> everything else).

I believe that version 8 of the ARM architecture will provide load-acquire
and store-release instructions.

							Thanx, Paul

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