// If this comment is removed the program will blow up 

我没有亲身经历过这种情况，但这是一个很好的故事(详见我的评论中的解释):

#define MSGTAG_B33R     0x723 /* RIPLVB */

// this is really complicated

没有其他评论了

//I am not sure why this works but it fixes the problem. 

这是之前的一组代码，技术上确实解决了问题，它的意思是，但打破了其他3个东西....

// set break point here - you'll never reach it

/*
 * You may think you know what the following code does.
 * But you dont. Trust me.
 * Fiddle with it, and youll spend many a sleepless
 * night cursing the moment you thought youd be clever
 * enough to "optimize" the code below.
 * Now close this file and go play with something else.
 */