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SubjectRe: [patch] new spinlock variant, spinlock-2.3.30-A4
On Fri, 3 Dec 1999, Manfred wrote:

>It seems that the cpu discards speculative reads if it sees a write
>operation on
>the system bus (I tried to force a speculative read, and my proggy never
>failed)

could you elaborate? If reads would been invalidated by parallel writes
the wait event shouldn't hang. The event-CPU writes in parallel and the
speculative read is not invalidated.

Andrea




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