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Why so serious?
lec17 VM for user
  1. VM for user
    1. user 所需的VM特性
    2. syscall for user VM
      1. mmap
        1. Anonymous Memory
        2. munmap
      2. mprotect
      3. sigaction
      4. 与特性的对应
    3. VM for user 实现基础
      1. VMAs
      2. User level trap
    4. VM for user:application
      1. 缓存表
      2. Garbage Collector
        1. copying GC
        2. Baker`s Real-Time GC
        3. VM GC
      3. VM GC
        1. 基本idea
        2. VM:简化GC并发
        3. map2
        4. code 示例(略)