Linux内核源码是很具吸引力的，特别是当你弄懂了一个分析了好久都没搞懂的问

题；或者是被你修改过了的内核，顺利通过编译，一切运行正常的时候。那种成就感真

是油然而生！-Linux kernel source code is very attractive, especially when you understand an analysis for a long time did not get to know the problem　or modified by the kernel you smoothly through the compiler, when everything works. What kind of sense of accomplishment welled up!