4000万行的Linux怎么管？Linus爆料：两周合并1.2万次提交、7周专门抓Bug，“我不是世界之王，只能给内核定规矩”

Core Viewpoint - The article discusses Linus Torvalds' role in maintaining the Linux kernel, emphasizing the importance of stability and the rigorous process of code merging and bug fixing, while also addressing the potential role of AI in this context [1][3][24]. Group 1: Linux Kernel Maintenance Process - The Linux kernel has over 40 million lines of code, and Torvalds claims he is no longer a programmer but focuses on overseeing the project [1]. - The kernel is released every 9 weeks, with approximately 12,000 submissions during each merge window, which Torvalds manages by merging code for two weeks and then spending the next seven weeks identifying and fixing bugs [13][15][16]. - A strict principle of "no regressions" is maintained, meaning no new bugs or backward compatibility issues are allowed [2][22]. Group 2: AI's Role in Development - Torvalds expresses skepticism about the hype surrounding AI but acknowledges its potential as a tool for code review and maintenance, rather than for writing code [24][25]. - He believes that AI can help streamline the code review process and has seen promising results from AI tools in identifying bugs [26][27]. - The comparison is made between AI and the advent of compilers, suggesting that while AI may enhance productivity, it is ultimately just another tool in the developer's toolkit [28][29]. Group 3: Challenges in Code Maintenance - The difficulty of maintaining the "no regressions" rule is highlighted, as changes can lead to unforeseen issues that affect existing applications [30][31]. - Developers often face the temptation to introduce new features, which can conflict with the stability required for widely used systems like the Linux kernel [32][33]. - Torvalds emphasizes the need for careful management of changes to avoid breaking existing functionality, advocating for the use of new interfaces while keeping old ones operational [34].