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Елизавета Городищева (Редактор отдела «Экономика»)
。关于这个话题，新收录的资料提供了深入分析
Синоптик Тишковец пообещал москвичам аномальное тепло07:47
To summarize, the kernel first translates the destination userspace virtual address to its backing physical frame via a software page table walk. Then it maps this frame into its own virtual address space as RW. Finally, it performs the writes using a simple memcpy.