Re: SMP share data declaration

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On 14/07/06, [email protected] <[email protected]> wrote:
I know that an integer variable should be declared volatile to share between
CPUs.

NO. volatile won't protect you sufficiently.

Use spinlocks, mutexes, semaphores, barriers and the like to protect
variables from concurrent access. Using volatile for this is a BUG and
it won't work correctly.


--
Jesper Juhl <[email protected]>
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