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转自：http://www.cnblogs.com/wuchanming/p/4020463.html 什么是僵尸进程？首先内核会释放终止进程(调用了exit系统调用)所使用的所有存储区，关闭所有打开的文件等，但内核为每一个终止子进程保存了一定量的信息。这些信息至少包括进程ID，进程的终止状态，以...

linux下的僵尸进程处理SIGCHLD信号【转】

阅读目录对于waitpid的p i d参数的解释与其值有关： wait与waitpid区别：转自：http://www.cnblogs.com/wuchanming/p/4020463.html 什么是僵尸进程？首先内核会释放终止进程(调用了exit系统调用)所使用的所有存储区，关闭所有打开的...

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linux下的僵尸进程处理SIGCHLD信号

什么是僵尸进程？首先内核会释放终止进程(调用了exit系统调用)所使用的所有存储区，关闭所有打开的文件等，但内核为每一个终止子进程保存了一定量的信息。这些信息至少包括进程ID，进程的终止状态，以及该进程使用的CPU时间，所以当终止子进程的父进程调用wait或waitpid时就可以得到这些信息。而...

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