为了简单起见，我们并未包含处理对当前状态无效的操作调用等情况的错误处理。
For simplicity, we did not include error handling for cases such as an invalid operation called for the current state.
如果对当前不在物理内存中加载的虚拟地址进行引用(这是一个页面错误)，则会出现DSI错误。
A DSI occurs whenever a reference is made to a virtual address that is not currently loaded in physical memory (this is a page fault).
它会让你的身体平静下来，让你从对未来的担忧或过去的错误中回过神来，把注意力集中在当前发生的事情上。
It will calm your body down and bring your mind back from future worries or past mistakes and into what is happening right here in the present moment again.
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