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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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