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Kernel Development: Drawing A Lesson From "Mistakes"

Toshiharu Harada, NTT DATA Corporation

Every kernel developer knows that Linux comes with plenty of precious documentation as an integral part. From coding style to how to post patches, almost everything has been documented. However, history shows that error is human nature. Sometimes developers do not well know Don’ts, but there are also cases when they make mistakes despite being aware of such rules. Why this happen is unsolved, but a documentation, so far missing, of the consequences of this misbehavior could discourage it. The presenter is project manager of TOMOYO Linux, a security enhancement feature merged in version 2.6.30. Thinking open-minded, he decided to share the errors his project made, wishing it could be a helpful warning to other projects, especially newcomers. In this presentation, it will try to explain the mistake circumstances in TOMOYO Linux project, highlighting the thoughts of project members and the community reactions. No prior kernel development experiences are necessary.