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update hw3, add lec09

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chyyuu 11 years ago
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2 changed files with 4 additions and 1 deletions
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      homework/hw3.txt
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      lectures/lec09-sched-20131021.pdf

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homework/hw3.txt View File

@ -9,4 +9,7 @@
8. 进程/线程上下文切换的执行逻辑是什么？二者有无区别？如有，区别是啥？
9. 为何vfork机制在有了Copy on Write (简称COW)技术后意义变得不大了？
10. 如何在ucore中实现COW技术？
11. 进程有几个栈？栈的作用是什么？
12. exec的内核实现中，如何返回到新的进程的入口点，并正确执行用户态的进程？
13. 内核线程和用户进程的mm结构有何区别？为什么？
14. 如何在ucore中实现可在用户态执行的线程？

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