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SubjectRe: FEATURE REQUEST: Specific Processor Optimizations on x86 Architecture
On Mon, 27 Oct 2003, Andi Kleen wrote:

> The wmb() change is not needed, unless you have an oostore CPU
> (x86 has ordered writes by default). It probably does not hurt
> neither though (I do it the same way on x86-64), but also doesn't
> change anything.

The original intent was to fix an SMP P5 system, it oopses otherwise under
load.
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