来自Linux内核源代码:

linux /包括/ asm-i386 / hw_irq。h:

/*
 * subtle. orig_eax is used by the signal code to distinct between
 * system calls and interrupted 'random user-space'. Thus we have
 * to put a negative value into orig_eax here. (the problem is that
 * both system calls and IRQs want to have small integer numbers in
 * orig_eax, and the syscall code has won the optimization conflict ;)
 *
 * Subtle as a pigs ear.  VY
 */

//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....

// I dedicate all this code, all my work, to my wife, Darlene, who will 
// have to support me and our three children and the dog once it gets 
// released into the public.

/* You are not meant to understand this */ 

//ALL YOUR BASE ARE BELONG TO US

.．.这让我的老板以为有人黑进了系统。他不知道这个笑话。

long john; // silver