[理工] OS Peterson's Solution

[mozzan (mozzan)]

大家好，我在讀原文書的時候這一段看不懂

Next, we illustrate a classic software-based solution to the critical-section
problem known as Peterson’s solution. Because of the way modern computer
architectures perform basic machine-language instructions, such as load and
store, there are no guarantees that Peterson’s solution will work correctly
on such architectures.

這是原文書上Process Synchronization第三節

它應該是說 Peterson’s solution 不適用在 Load/store architecture

想請問實際的原因是??

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推 A4P8T6X9:思考看看dynamical scheduling.
→ A4P8T6X9:processor會重排指令已減少hazard，而release lock，就是
→ A4P8T6X9:sw，很可能被重排，導致太晚進入CS或太早出來。