A question about the per-task variable

[Joel Sherrill]

PowerMan wrote:
> The feature of the per-task variable is
> 1. Modification of the owner will not affect other non-owner tasks
> 2. Other tasks' modification will not affect the owner.
>  
> That seems right on single-core processor.
> I thought that it is wrong on a SMP which can
> really run several task simultaneously(not pseudo parallelizm)
>  
> Right?
>  
That seems like a correct analysis.

Are you working on SMP for RTEMS?  It isn't supported now. :)

I will add this to my SMP/RTEMS design document as
an issue.  I really don't think this can be solved.  Perhaps
someone familiar with this feature on another OS can
comment.

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Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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