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发表于 2005-2-24 11:43:40
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Post by vividlife
刚开始接触linux kernel,再读Understanding the linux kernel一书。
有句话不是很明白。
"age frames above the 896 MB boundary are not mapped in the fourth gigabyte of the kernel linear address spaces, so they cannot be directly accessed by the kernel. "
为什么会有896MB的限制呢?
请发帖前先搜索,记得以前有过这个问题的答案 |
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