2026-02-27 00:00:00:03014245410http://paper.people.com.cn/rmrb/pc/content/202602/27/content_30142454.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/27/content_30142454.html11921 本版责编：杨 彦 孙 振 戴林峰 刘雨瑞
Also: The best password manager for families in 2026: Expert tested and reviewed，推荐阅读新收录的资料获取更多信息
On 64 bit x86, all of physical memory is mapped via the linear mapping region of the kernel’s virtual address space. kmap() is trivial in this case — it just needs to add the start address of the linear mapping to the frame’s physical address to compute the virtual address that frame is mapped at.，这一点在新收录的资料中也有详细论述
绕了这么大一圈，两家最后卡的地方是同一个：路都铺好了，引擎还没造好。，更多细节参见新收录的资料