What is striking about this implementation is that it does not involve CR0.WP. The implementation elegantly sidesteps this by exploiting the fact that it is under no obligation to access memory via the pointer it receives from userspace. Since the kernel is in complete control of virtual memory, it can simply remap the physical frame into its own virtual address space, with arbitrary permissions, and operate on it as it wishes.
回看阿里大文娱的起点，马云“不为赚钱，只为玩”的轻松心态，阿里“全都要”的实际操盘效果，为其后续的战略摇摆埋下伏笔。。whatsapp对此有专业解读
第七十六条 被申请人提出证据证明裁决有本法第七十一条第一款规定的情形之一的，经人民法院组成合议庭审查核实，裁定不予执行。。业内人士推荐手游作为进阶阅读
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