The dsisr (Data Storage Interrupt Status Register) indicates why the page fault could not be resolved.

dsisr(数据存储中断状态寄存器)表示页面错误无法解决的原因。

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If there is any change in the status register, it means an interrupt has occurred.

如果状态寄存器发生了变化，就意味着已经触发了一个中断。

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This condition is signaled via the Status register and the Data Overrun Interrupt (if enabled).

这种情况是通过状态寄存器和数据溢出中断（如果使用）来体现。

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